TREA

Mitsuo Sasai

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for forming drum seam
    • Patent number 4,392,295
    • Issue date Jul 12, 1983
    • Nittetsu Steel Drum Co., Ltd.
    • Mitsuo Sasai
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...