Vincent Hervais

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Bully-les-Mines, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for cooling a tubular sleeve of thermoplastic material and...
- Patent number 4,818,467
- Issue date Apr 4, 1989
- Societe Chimique des Charbonnages, societe anonyme
- Joel Audureau
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Blown tubing method and apparatus
- Patent number 4,624,823
- Issue date Nov 25, 1986
- Societe Chimique des Charbonnages SA
- Joel Audureau
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL