Patents
Patents for G11B 3 - Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor (2,921)
04/1976
04/20/1976US3952145 Pickup arm cartridge apparatus
04/20/1976US3951841 Sodium azide fungicide
04/13/1976US3949995 Record player needle control mechanism
04/06/1976US3948529 Phonograph turntable anti-skating device
03/1976
03/30/1976US3947063 Handling of phonograph records
03/30/1976US3947043 Recordsplayers
03/23/1976US3946167 High density recording playback element construction
03/23/1976US3946149 Apparatus for embossing information on a disc
03/23/1976US3945790 Pressing device for manufacturing of storage substrates
03/23/1976US3945647 Cleaning gramophone records
03/16/1976US3944755 Composite filter circuit
03/16/1976US3944754 Record disc recording system with signal amplitude controlled by stylus arm position
03/09/1976US3943303 Abnormal sound eliminating system in record disc reproducing apparatus
03/09/1976US3943302 Electron beam recording in thick materials
03/02/1976US3941392 Record player
02/1976
02/24/1976US3940149 Tonearm linear-drive apparatus
02/17/1976US3938810 Center hole formation in an information storing disc
02/10/1976US3937903 Sound track selector system for phonograph record players
01/1976
01/27/1976US3934885 Bearing of a pick-up arm for a record player
01/27/1976US3934884 Precision piece selector on gramaphone record
01/20/1976US3934080 Apparatus for reading a disk-shaped record carrier to be played on a turntable
1 ... 20 21 22 23 24 25 26 27 28 29 30