TREA

Ervin C. Langan

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  • Atchison, KS, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Seed coating composition and method
    • Patent number 4,493,162
    • Issue date Jan 15, 1985
    • W.E.F.C.O., Inc.
    • Ervin C. Langan
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Flail-type mulcher cultivator
    • Patent number 4,260,027
    • Issue date Apr 7, 1981
    • W.E.F.C.O., Inc.
    • Ervin C. Langan
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING