Hiroki Hanawa

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Air pump, air chamber device using air pump, and wristwatch having...
- Patent number 6,461,125
- Issue date Oct 8, 2002
- Seiko Instruments Inc.
- Dai Terasawa
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...