TREA

Artemas M. Larkin

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  • Redding, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Large profile sheet metal corrugator
    • Patent number 4,269,055
    • Issue date May 26, 1981
    • Sivachenko; Eugene W.
    • Eugene W. Sivachenko
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Lightweight modular, truss-deck bridge system
    • Patent number 4,120,065
    • Issue date Oct 17, 1978
    • Sivachenko; Eugene W.
    • Eugene W. Sivachenko
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES