TREA

YIMING DAI

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  • BOLINGBROOK, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary punch
    • Patent number 7,980,162
    • Issue date Jul 19, 2011
    • Formtek Metal Forming, Inc.
    • Benjamin A. Barnes
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    ROTARY PUNCH
    • Publication number 20080105098
    • Publication date May 8, 2008
    • FORMTEK METAL FORMING, INC.
    • BENJAMIN A. BARNES
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...