JOIST INC

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TORONTO, ON, CA

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Patents Grantslast 30 patents

Information Patent Grant
Concrete-made panel and method of fabricating the same
- Patent number 6,000,194
- Issue date Dec 14, 1999
- JOIST Co., Ltd.
- Mitsuo Nakamura
- B28 - WORKING CEMENT, CLAY, OR STONE