Tomio Iwata

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Chichibu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Demolition agent for brittle materials
- Patent number 4,717,503
- Issue date Jan 5, 1988
- Mitsubishi Mining & Co., Ltd.
- Yoshio Makino
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES