Masaru Muranaka

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Stair-climbing chair system
- Patent number 6,679,353
- Issue date Jan 20, 2004
- Kumalift Co. Ltd.
- Masaru Muranaka
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Chair type stair elevating device
- Patent number 6,332,512
- Issue date Dec 25, 2001
- Kumalift Co., Ltd.
- Masaru Muranaka
- B66 - HOISTING LIFTING HAULING