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Lynn B. Cromrich

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  • Clancy, MT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Insulated face brick
    • Patent number 4,963,305
    • Issue date Oct 16, 1990
    • Bloom; Leonard
    • John Cromrich
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Insulated face brick
    • Patent number 4,831,802
    • Issue date May 23, 1989
    • Bloom; Leonard
    • John Cromrich
    • B28 - WORKING CEMENT, CLAY, OR STONE