| VSC Variable Speech Control Company, The
73131548 22 Jun 1977 | on 25 Jan 1988 | Tape Recorders, Tape Players, and Signal Expander and Compressor Circu... Class 009 Class 009 Computer & Software Products & Electrical & Scientific Products Tape Recorders, Tape Players, and Signal Expander and Compressor Circuits for Expanding and Compressing Electrical Signals While Maintaining Desired Frequency Components Thereof | | | SPEECH CONTROLLER Variable Speech Control Company, The
73131549 22 Jun 1977 | on 29 May 1987 | Tape Recorders, Tape Players, and Signal Expander and Compressor Circu... Class 009 Class 009 Computer & Software Products & Electrical & Scientific Products Tape Recorders, Tape Players, and Signal Expander and Compressor Circuits for Expanding and Compressing Electrical Signals While Maintaining Desired Frequency Components Thereof | | | SOUND PACER VARIABLE SPEECH CONTROL COMPANY, THE
73345251 11 Jan 1982 | on 21 Apr 1983 | TAPE RECORDERS AND PLAYERS AND FOR CIRCUITS FOR EXPANDING AND COMPRESS... Class 009 Class 009 Computer & Software Products & Electrical & Scientific Products TAPE RECORDERS AND PLAYERS AND FOR CIRCUITS FOR EXPANDING AND COMPRESS ING ELECTRICAL SIGNALS WHILE MAINTAINING DESIRED FREQUENCY COMPONENTS THEREOF | |