Hans De Vries

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Drachten, NL

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Patents Grantslast 30 patents

Information Patent Grant
Manufacture of a flexible container
- Patent number 6,217,499
- Issue date Apr 17, 2001
- Dunlop Enerka B.V.
- Hans De Vries
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Belt having transverse rigidity
- Patent number 5,779,028
- Issue date Jul 14, 1998
- Dunlop-Enerka B. V.
- Hans De Vries
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL