John C. J. Olierook

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic-tape cassette with a latching cover plate
- Patent number RE33872
- Issue date Apr 7, 1992
- U.S. Philips Corporation
- Karel G. M. Koken
- 242 - Winding, tensioning, or guiding
Information Patent Grant
Cassette with a latching pivoted cover
- Patent number 4,634,020
- Issue date Jan 6, 1987
- U.S. Philips Corporation
- Cornelis M. Beyersbergen van Henegouwen
- G11 - INFORMATION STORAGE
Information Patent Grant
Cassette with cover latches controlling the cover opening direction
- Patent number 4,621,297
- Issue date Nov 4, 1986
- U.S. Philips Corporation
- Cornelis M. Beyersbergen van Henegouwen
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic-tape cassette with a latching cover plate
- Patent number 4,576,345
- Issue date Mar 18, 1986
- U.S. Philips Corporation
- Karel G. M. Koken
- G11 - INFORMATION STORAGE