Ernst P. Hess

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Castro Valley, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Ink ribbon cartridge with constant tension mechanism
- Patent number 4,132,485
- Issue date Jan 2, 1979
- Qume Corporation
- Ernst P. Hess
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Endless ribbon cartridge
- Patent number 4,053,042
- Issue date Oct 11, 1977
- Qume Corporation
- Ernst P. Hess
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Endless loop ribbon cartridge with random storage
- Patent number 3,974,906
- Issue date Aug 17, 1976
- Xerox Corporation
- Sen Lin Lee
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Cartridge drive apparatus
- Patent number 3,967,790
- Issue date Jul 6, 1976
- Qume Corporation
- Ernst P. Hess
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL