Walter Hapke

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Hildesheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Automatic preferred direction selection for a bidirectional tape tr...
- Patent number 4,544,965
- Issue date Oct 1, 1985
- Blaupunkt-Werke GmbH
- Tilo Diepholz
- G11 - INFORMATION STORAGE
Information Patent Grant
Magazine-equipped cassette tape recorder-player
- Patent number 4,471,394
- Issue date Sep 11, 1984
- Blaupunkt-Werke GmbH
- Walter Hapke
- G11 - INFORMATION STORAGE