TREA

Noriyoshi Sonobe

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  • Hitachi, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rolling mill
    • Patent number 3,943,742
    • Issue date Mar 16, 1976
    • Hitachi, Ltd.
    • Toshiyuki Kajiwara
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...