TREA

Tatsuo Umeda

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  • Brampton, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Super stretch draw die and method
    • Patent number 6,006,576
    • Issue date Dec 28, 1999
    • Cosma International Inc.
    • Erich Genseberger
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...