Willem J. de Groot

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Jona, CH

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Patents Grantslast 30 patents

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Pyrotechnical welding sleeve connector for the joining of molded co...
- Patent number 4,274,662
- Issue date Jun 23, 1981
- Dynamit Nobel AG
- Willem J. de Groot
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL