Ken-ichi Ishikawa

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Nukatani, Kanazawa-shi, Ishikawa-Ken, JP

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Patents Grantslast 30 patents

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Method and apparatus for cutting hard and brittle material using sy...
- Patent number 4,484,412
- Issue date Nov 27, 1984
- Ken-ichi Ishikawa
- B28 - WORKING CEMENT, CLAY, OR STONE