Koji Okada

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing ventilating device and the ventilating device
- Patent number 6,638,036
- Issue date Oct 28, 2003
- Hitachi, Ltd.
- Kenji Kobayashi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...