Ernst Ruede

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Bellach, CH

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Patents Grantslast 30 patents

Information Patent Grant
Electrically weldable sleeve for joining thermoplastic pipeline parts
- Patent number 4,778,981
- Issue date Oct 18, 1988
- Von Roll AG
- Ernst Ruede
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL