81: GENERAL KINETICS INC. 12300 Parklawn Dr. Rockville, Md. 20852

REVENUE: $8 million LOSS: $52,000 LOSS PER SHARE: 7 cents DIVIDEND: None ASSETS: $3.4 million STOCKHOLDERS' EQUITY: $1.4 million RETURN ON EQUITY: NA EXCHANGE: OTC EMPLOYES: 162 TOP EXECUTIVE: Louis R. Schap, president FOUNDED: 1954 DESCRIPTION: General Kinetics supplies shipboard electronic mounting systems to the U.S. Navy and its prime systems contractors. Its media division also offers magnetic-tape products and services, and Food Technology Corp., a wholly owned subsidiary, makes food-texture equipment and automated electro-optical sorting systems.

DEVELOPMENTS: General Kinetics reported a 14 percent climb in sales for its fiscal year ended May 31, 1984, pushing its losses down 80 percent from $251,000 in 1983 to $52,000. Loss per share also declined almost 80 percent from 31 cents in 1983 to 7 cents. That pattern of improvement continued in fiscal 1985, as the company reported profits of $535,466 (66 cents a share) on sales of $4.5 million for the first six months ended Nov. 30, compared with a loss of $160,062 (20 cents) for the same period the year before. The company attributed its increased earnings to the development and marketing of new equipment. 82: INSITUFORM EAST INC. 3421 Pennsy Dr. Landover, Md. 20785

REVENUE: $6.8 million PROFITS: $554,000 EARNINGS PER SHARE: 21 cents DIVIDEND: None ASSETS: $6.1 million STOCKHOLDERS' EQUITY: $4.6 million RETURN ON EQUITY: 12 percent EXCHANGE: OTC EMPLOYES: 100 TOP EXECUTIVE: Arthur G. Lang, president and chief executive officer FOUNDED: 1978

DESCRIPTION: Insituform East is a regional U.S. licensee of an international company that patented the Insituform Process of repairing damaged sewers and pipelines. The process involves lining corroded pipes with a heat-sensitive polyurethane resin and requires little or no excavation.

DEVELOPMENTS: Insituform East stepped up activities in the fiscal year ended June 30, 1984, adding staff, purchasing equipment and building up its base of operation. The capital outlay required to expand the business cut into profits, however, the firm said, and net income dropped 18 percent for fiscal 1984, even though revenue jumped 36 percent.

For the first six months of fiscal 1985, the firm said earnings per share rose 25 percent to 28 cents. The firm attributed the growth to new contracts with municipal and industrial clients, including Prince William County and a chemical plant in Baltimore.

The company's merger discussions with Insituform of North America Inc. of Memphis, which owns the license to the Insituform Process, disintegrated after Insituform East's board of directors vetoed the plan. The board contended that the merger might sacrifice the company's earnings per share. 83: BOWLES FLUIDICS CORP. 6625 Dobbin Rd. Columbia, Md. 21045

REVENUE: $6.7 million PROFITS: $818,000 EARNINGS PER SHARE: 7 cents DIVIDEND: None ASSETS: $2.7 million STOCKHOLDERS' EQUITY: ($167,000) RETURN ON EQUITY: NA EXCHANGE: OTC EMPLOYES: 105 TOP EXECUTIVE: Julian Lazrus, president FOUNDED: 1961 DESCRIPTION: Bowles Fluidics makes windshield-washer nozzles for 80 percent of U.S. passenger cars. The company manufactured Aqua-Massage shower massagers until recently, when executives decided to relinquish that market and concentrate on automotive products. Bowles is now exploring new uses for fluidic devices. DEVELOPMENTS: Increased sales boosted Bowles's revenue by 19 percent for the year ended Oct. 27. But profits slid 4 percent, and the company blamed the decline on the cost of relocating from Silver Spring to new, expanded facilities in Columbia last May. 84: D.C. TRADING & DEVELOPMENT CORP. 2600 M St. NW Washington, D.C. 20007

REVENUE: $6.6 million PROFITS: $1.2 million EARNINGS PER SHARE: 48 cents DIVIDEND: None ASSETS: $16.2 million STOCKHOLDERS' EQUITY: $1.6 million RETURN ON EQUITY: NA percent EXCHANGE: OTC EMPLOYES: 37 TOP EXECUTIVES: O. Roy Chalk, chairman and president; Peter J. Hubshman, executive vice president and director

DESCRIPTION: D.C. Trading and Development, formerly the D.C. Transit System Inc., is primarily a real estate holding company. The D.C. Transit System owned all of the city's buses and streetcars before they were taken over by the local government in 1973. Since then, D.C. Trading and Development has been involved in managing the real estate left over from the transit system and in fighting a series of legal battles stemming from the transit takeover. The company also is involved in the travel business through its subsidiary, DCT Travel Inc., and its airline, Trans Carib Air Inc. (not now in operation). D.C. Trading also has entered the machine-tool industry with its new wholly owned subsidiary, DCTech Research Centers.

DEVELOPMENTS: The company's major activity in 1984 was the formation of DCTech Research Centers, a multimillion-dollar high-tech manufacturing research and production center in Northeast Washington. The DCTech plant, located on Michigan Avenue near Catholic University, will manufacture spare parts and conduct research in support of the machine-tool industry. During 1985, the company plans to integrate the 12 computer-controlled machine centers at the plant with a computer-assisted design and manufacturing system.

In fiscal 1984, D.C. Trading's earnings increased sharply, from a loss of $623,000 (32 cents a share) in 1983 to a profit of $1.5 million (48 cents). The company's net revenue rose from $2.1 million to $6.5 million. D.C. Trading received $4 million as the final portion of a 1982 condemnation award involving a portion of the company's right-of-way in the District. 85: BIOSPHERICS INC. 4928 Wyaconda Rd. Rockville, Md. 20852

REVENUE: $6.1 million PROFITS: $110,000 EARNINGS PER SHARE: 3 cents DIVIDEND: None ASSETS: $3.5 million STOCKHOLDERS' EQUITY: $1.9 million RETURN ON EQUITY: 5.8 percent EXCHANGE: OTC EMPLOYES: 200 TOP EXECUTIVE: Gilbert V. Levin, president FOUNDED: 1967

DESCRIPTION: Biospherics provides high-technology products and services for the health, maritime and environmental industries. Its operations include an engineering and instrumentation division, which develops products and technologies; a laboratory division, which conducts research and analysis; and an information division, which distributes educational materials on health and social sciences.

DEVELOPMENTS: Biospherics reported a 111 percent climb in profits during the fiscal year ended Dec. 31 on a 15 percent rise in sales. The firm attributed its healthy results to growth and profits in all three divisions. The engineering group announced in November that it had received a U.S. Navy contract to develop a military version of the Oil Sentry, an oil pollution control device. PhoStrip, a process to remove phosphate pollution from waste-water treatment plant discharges, also enjoyed good sales. Finally, the firm reported that it is developing a low-calorie sugar substitute called Lev-O-Cal.