Gerhard Zwirner

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Haan, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for manufacturing a cushioning member
- Patent number 4,743,328
- Issue date May 10, 1988
- Gebr. Happich GmbH
- Gerhard Zwirner
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
High frequency weldable textile material
- Patent number 4,719,136
- Issue date Jan 12, 1988
- Gebr. Happich GmbH
- Gerhard Zwirner
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Swivel bearing for automobile sun visors
- Patent number 4,696,510
- Issue date Sep 29, 1987
- Gebr. Happich GmbH
- Gerhard Zwirner
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Foil covering layer for sun visor
- Patent number 4,411,467
- Issue date Oct 25, 1983
- Gebr. Happich GmbH
- Kurt Cziptschirsch
- B60 - VEHICLES IN GENERAL