Helmut Stein

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Ditzingen, DT

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Patents Grantslast 30 patents

Information Patent Grant
Method to apply a protective layer to the surface of optical reflec...
- Patent number 4,085,248
- Issue date Apr 18, 1978
- Robert Bosch GmbH
- Ernst Zehender
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL