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Leas Brothers Development Corporation

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  • Columbia City, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Coal conversion process
    • Patent number 4,078,989
    • Issue date Mar 14, 1978
    • Leas Brothers Development Corporation
    • Arnold Marcel Leas
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Direct metal reduction from coal
    • Patent number 3,985,548
    • Issue date Oct 12, 1976
    • Leas Brothers Development Corporation
    • Lawrence Earl Leas
    • C21 - METALLURGY OF IRON

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