Jean Y. Regeffe

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Conflans-Ste-Honorine, FR

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Patents Grantslast 30 patents

Information Patent Grant
Rotary sealing device
- Patent number 4,512,790
- Issue date Apr 23, 1985
- Lignes Telegraphiques & Telephoniques
- Michel Faure
- C03 - GLASS MINERAL OR SLAG WOOL