Masayuki Akimoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 6,378,594
- Issue date Apr 30, 2002
- Kabushiki Kaisha Nichibei
- Hiroomi Yamanaka
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS