Klaas Drenth

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Ureterp, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for verifying whether documents have been sepa...
- Patent number 5,655,668
- Issue date Aug 12, 1997
- Hadewe B.V.
- Klaas Drenth
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Method of checking the composition of multilayer units composed of...
- Patent number 5,526,939
- Issue date Jun 18, 1996
- Hadewe B.V.
- Ydo N. Hoekstra
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL