K. S. Chan

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Replaceable head electric toothbrush and connection structure therefor
- Patent number 6,836,917
- Issue date Jan 4, 2005
- The Procter & Gamble Company
- Lawrence A. Blaustein
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE