Gert J. Drent

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Groningen, NL

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Patents Grantslast 30 patents

Information Patent Grant
Massaging apparatus having two rollers and a suction chamber
- Patent number 6,017,320
- Issue date Jan 25, 2000
- U.S. Philips Corporation
- Jean B. Bleeker
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE