Katsuhisa Mizuma

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Helical reinforcing bar for steel cage in concrete structure
- Patent number 4,119,764
- Issue date Oct 10, 1978
- Neturen Company Ltd.
- Katsuhisa Mizuma
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...