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William J. SEWALL

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  • Brooks, CA
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Patents Applicationslast 30 patents

  • Information Patent Application

    SWITCHING ASSEMBLY FOR A HYDRAULIC PUMP JACK
    • Publication number 20160032915
    • Publication date Feb 4, 2016
    • Zedi Canada Inc.
    • Peter G. HASELOH
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SWITCHING ASSEMBLY FOR A HYDRAULIC PUMP JACK
    • Publication number 20150176573
    • Publication date Jun 25, 2015
    • Zedi Canada Inc.
    • Peter G. HASELOH
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SWITCHING ASSEMBLY FOR A HYDRAULIC PUMP JACK
    • Publication number 20120148418
    • Publication date Jun 14, 2012
    • Peter G. Haseloh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...