Masaya Sera

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Waterproof sheet fixing member and method of fixing the same
- Patent number 6,338,232
- Issue date Jan 15, 2002
- Tsutsunaka Plastic Industry Co., Ltd.
- Takashi Yamanaka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL