Helmut Laufer

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St. Georgen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Magazine-type record player
- Patent number 5,034,937
- Issue date Jul 23, 1991
- Deutsche Thomson-Brandt GmbH
- Johannes Caspers
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk player with magazine
- Patent number 4,811,318
- Issue date Mar 7, 1989
- Deutsche Thomson-Brandt GmbH
- Helmut Laufer
- G11 - INFORMATION STORAGE
Information Patent Grant
Device for recording information on and playing it back from a driv...
- Patent number 4,800,553
- Issue date Jan 24, 1989
- Deutsche Thomson-Brandt GmbH
- Helmut Laufer
- G11 - INFORMATION STORAGE
Information Patent Grant
Switching device for a tape recorder
- Patent number 4,142,217
- Issue date Feb 27, 1979
- Dual Gebruder Steidinger
- Helmut Laufer
- G11 - INFORMATION STORAGE
Information Patent Grant
Switching arrangement for a tape recorder
- Patent number 4,135,216
- Issue date Jan 16, 1979
- Steidinger; Dual Gebruder
- Helmut Laufer
- G11 - INFORMATION STORAGE
Information Patent Grant
Drive device for a tape recorder
- Patent number 4,133,498
- Issue date Jan 9, 1979
- Dual Gebruder Steidinger
- Helmut Laufer
- G11 - INFORMATION STORAGE