TREA

Daniel M. Schaeffer

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  • Middle Island, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Line tensioning apparatus and method
    • Patent number 4,144,620
    • Issue date Mar 20, 1979
    • Daniel M. Schaeffer
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...