A story in yesterday's Business & Finance section contained incorrect fourth quarter sales figures for Flow General.Sales for the fourth quarter ended June 30 were $32.306 million compared with $21.616 for the same quarter a year ago.Earnings for the fiscal year were $7.965 million ($1.07 a share) compared with $3.777 million (67 cents); sales were $111.97 million compared with $77.065 million a year earlier.

Flow General, a biological research firm producing inteferon, reported net earnings of $2.533 million for the quarter ended June 30 compared with earnings of $1.267 million for the same period a year ago.

Sales were $8.055 million compared with $6.383 million a year before.

Earnings for the fiscal year ended June 30 were $7.965 million ($1.07 a share) compared with $3.777 million (67 cents) for the previous fiscal year.

Company officials said that per-share earnings for 1980 have been restated to reflect a 2-for-1 stock split in July 1980 and a 3-for-2 stock split in December 1980.

LogEtronics Inc. of Springfield reported earnings of $195,000 (17 cents a share) for the quarter ended June 30 compared with $253,000 (22 cents) for the same period a year ago. Sales were $7.989 million compared with $8.081 million a year before.

The 1980 figures were restated to include the acquisition of Interpretation Systems Inc. and Spatial Data Systems Inc. accounted for on a pooling-of-interest basis, the firm said.

Net income for the first half of 1981 was $1.385 million ($1.18), including $956,000 (82 cents) in the first quarter resulting from undistributed earnings of foreign subsidiaries and deferred Domestic International Sales Corp. earnings that are required to be reinvested permanently.

Jefferson Bank & Trust Co. of Capitol Heights reported pretax earnings of $179,397 for the first six months of the year, after deducting additional unrequired reserves of $27,760, compared with a net profit of $21,000 for the six months ended Dec. 31, 1980.

Thomas C. Pulliam Jr., executive vice president, said assets for the six months ended June 30, 1981, rose to $8.512 million, up 2 percent from $6.860 million for the previous six months.