73547916
Jul 15, 1985
Feb 3, 1987
SCIENTIFIC INSTRUMENTS FOR USE IN TEACHING AND INSTRUCTION IN EDUCATIONAL FACILITIES, NAMELY TRANSMITTERS, CASSETTE TAPES, PILLOW TRANSMITTERS, EARPHONES, MICROPHONES, AND EXTENSION CORDS AND CABLES AND CARRYING CASES FOR ELECTRONIC DEVICES FOR SUBLIMINAL COMMUNICATIONS
Electrical and Scientific Apparatus