TREA

Elmer Christensen

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  • Kirkland, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for selective sorting of material chips
    • Patent number 4,452,694
    • Issue date Jun 5, 1984
    • Black Clawson, Inc.
    • Elmer Christensen
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Screening apparatus
    • Patent number 4,122,006
    • Issue date Oct 24, 1978
    • Black Clawson, Inc.
    • Elmer Christensen
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING