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Rowland G. Hall

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  • Burbank, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Adapter for plastic pipe
    • Patent number 4,905,766
    • Issue date Mar 6, 1990
    • R & G Sloane Mfg. Co., Inc.
    • William A. Dietz
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball valve and method for assembling same
    • Patent number 4,665,937
    • Issue date May 19, 1987
    • Rowland G. Hall
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball valve
    • Patent number 4,327,895
    • Issue date May 4, 1982
    • R & G Sloane Manufacturing Co.
    • James J. Blumenkranz
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...