Roger Schultheiss

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Dielsdorf, CH

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Patents Grantslast 30 patents

Information Patent Grant
Amplifier unit
- Patent number 5,181,251
- Issue date Jan 19, 1993
- Studer Revox AG
- Roger Schultheiss
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrodynamic loudspeaker
- Patent number 5,129,005
- Issue date Jul 7, 1992
- Studer Revox AG
- Paul Zwicky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE