Eugene Raymond Capozio, 65, a retired patent examiner and audio specialist, died of cancer Monday at Arlington Hospital.

Mr Capozio became a translator for the Patent Office in about 1938 and was a chief patent examiner when he retired in 1970.

He also was a mechanical engineer who designed audio-stereo sound equipment for Shrader Sound in Georgetown for Shrader Sound in Georgetown for many years. His designs, known as the Capozio Speaker Systems, were reviewed in technical magazines such as "High Fidelity." In the early 1950s, Mr. Capozio's work came to the attention of the Italian conductor, Arturo Toscanini, who asked Mr. Capozio to design custom speaker cabinets for his home and studio in Italy.

Mr. Capozio also was an amateur photographer whose work was exhibited locally.

He was born in New York City and earned a bachelor's degree in mechanical engineering from George Washington University. He lived in Arlington.

Survivors include his wife, Isabelle M., and a daughter, Barbara L., both of the home; two brothers, Nicholas, of Philadelphia, and John T., of Great Falls, Va., four sisters, Olga Brooks, of West Palm Beach, Fla., Norma Riccardo, of Los Angeles, Calif., Ruth Kalbacher, of Tampa, Fla., and Joan Sistrunk, of Long Island, N.Y.