TREA

Richard L. Siehr

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  • Two Rivers, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ring supported tower crane
    • Patent number 4,194,638
    • Issue date Mar 25, 1980
    • The Manitowoc Company, Inc.
    • James G. Morrow
    • B66 - HOISTING LIFTING HAULING