| 1961 HADDEN GEORGE Electronic Organ Patent Print |
| 1961 PEARSON Electronic Musical Instrument Method |
| 1961 DE Frequency Division System Electronic Organ Like |
| 1961 WURLITZER CO Pedal Structure Electronic Piano |
| 1961 GEORGE PARSONS Electronic Drum Patent Print |
| 1961 KINSMAN MFG CO INC Electronic Organ Patent |
| 1961 SABINE HALE Electronic Piano Patent Print |
| 1961 HYMAN Automatic Electronic Organ Patent |
| 1961 WESTINGHOUSE AIR BRAKE CO Electronic Track Circuit |
| 1961 CAMPBELL Phase Shift Oscillator Electronic Organs |
| 1961 RCA CORP Electronic Sound Absorber Patent |
| 1961 UTT Electronic Track Circuit Patent Print |
| 1961 LAWRENCE Electronic Tone Signal Generators |
| 1961 ELECTRONIC PIANOS INC Piano Capacitor Reactor |
| 1961 MERIDAN CORP Electronic Piano Patent Print |
| 1961 OLSON Electronic Sound Absorber Patent |
| 1961 BALDWIN PIANO Electronic Musical Instrument |
| 1961 KINSMAN Phase Shift Oscillator Electronic Organs |
| 1961 ANDERSEN Pedal Structure Electronic Piano |
| 1961 BISSONETTE Electronic Musical Instrument |
| 1961 LESLIE Vibrato Oscillator Electronic Organs Like |
| 1961 MIESSNER BENJAMIN Electronic Piano Patent |
| 1961 WURLITZER CO Electronic Piano Patent Print |
| 1961 Electronic Computers: Fundamentals, Systems &c |
| VINTAGE 1961 MATTEL ELECTRONIC SONAR SUB HUNT GAME WORK |