Takeshi Kato

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Patents Grantslast 30 patents

Information Patent Grant
Plastic pipe joint assembly for joining sections of plastic pipe
- Patent number 5,150,923
- Issue date Sep 29, 1992
- Hitach Metals, Ltd.
- Hiroshi Ohya
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL