Gerhard Preisendoerfer

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Heusenstamm, DE

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Patents Grantslast 30 patents

Information Patent Grant
Seal between two interlocking components
- Patent number 5,813,677
- Issue date Sep 29, 1998
- Forsheda-Stefa GmbH
- Gerhard Preisendoerfer
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Seal between two telescopically insertable concrete components
- Patent number 5,566,955
- Issue date Oct 22, 1996
- Forsheda-Stefa GmbH
- Gerhard Preisendoerfer
- B28 - WORKING CEMENT, CLAY, OR STONE