Assignee
SPEM SRL
4 granted patents·28 citations·filing 1976–1977
Top patents by PatentIndex Score
4 records- 0157US4043149AUniform-load clutch device particularly adapted for application in magnetic-tape recordersSPEM SRL·Filed 1976·Granted Aug 23, 1977·17 cites·6 claims
- 0242US4145727ACassette control mechanisms for magnetic cassette type recordersSPEM SRL·Filed 1977·Granted Mar 20, 1979·6 cites·3 claims
- 0328US4025027ATape propelling means in cassette-type tape-recordersSPEM SRL·Filed 1976·Granted May 24, 1977·3 cites·1 claims
- 0422US4023870ASelf-centering device to fasten a rotatory wheel against axial movementsSPEM SRL·Filed 1976·Granted May 17, 1977·2 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →