Gerhard Ullmann

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Gross-Gerau, DE

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Patents Grantslast 30 patents

Information Patent Grant
Joining together shaped bodies of polytetrafluoroethylene
- Patent number 4,211,594
- Issue date Jul 8, 1980
- Sigri Elektrographit Gesellschaft mit Beschrankter Haftung
- Gunter Freitag
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for joining together shaped bodies of polytetrafluoroethylene
- Patent number 4,197,149
- Issue date Apr 8, 1980
- Sigri Elektrographit GmbH
- Gunter Freitag
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL