Erich Grunner

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Vienna, OE

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Patents Grantslast 30 patents

Information Patent Grant
Tire mold
- Patent number 4,063,861
- Issue date Dec 20, 1977
- Polyair Maschinebau GmbH
- Oskar Schmidt
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL