H04R 17 - Piezo-electric transducers; Electrostrictive transducers

Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213)
08/1976
08/24/1976	US3976830 Apparatus and method for embossing information on a disc
08/17/1976	US3975025 Pickup cartridge
08/10/1976	US3974463 Elastic surface wave apparatus
08/03/1976	US3973150 Rectangular, oriented polymer, piezoelectric diaphragm
07/1976
07/27/1976	US3971962 Linear transducer array for ultrasonic image conversion
07/20/1976	US3970879 Piezoelectric acoustic device
06/1976
06/22/1976	US3965376 Pulsed droplet ejecting system
04/1976
04/27/1976	US3952387 Method of manufacturing an ultrasonic probe
04/20/1976	US3952171 Stereo phonograph cartridge
03/1976
03/30/1976	US3947647 Microphone having improved transducer support
03/30/1976	US3947644 Piezoelectric-type electroacoustic transducer
03/23/1976	US3946167 High density recording playback element construction
03/23/1976	US3946149 Apparatus for embossing information on a disc