TREA

Edward H. Calkins

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  • Gaylord, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dry bowl smoker's pipe
    • Patent number 4,730,626
    • Issue date Mar 15, 1988
    • Edward H. Calkins
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Reduced moisture smoker's pipe
    • Patent number 4,577,645
    • Issue date Mar 25, 1986
    • Edward H. Calkins
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Air flow dry bowl pipe
    • Patent number 4,362,169
    • Issue date Dec 7, 1982
    • Edward H. Calkins
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES