TREA

Fredrick B. Dreyer

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  • St. Louis, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wallboard cutter
    • Patent number 4,801,101
    • Issue date Jan 31, 1989
    • Gruendler Crusher and Pulverizer, Co.
    • Fredrick B. Dreyer
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Hammerpin puller
    • Patent number 4,017,957
    • Issue date Apr 19, 1977
    • Gruendler Crusher & Pulverizer Co.
    • Fredrick B. Dreyer
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR