TREA

Robert B. Gruener SR.

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  • Mishawaka, IN, US
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Patents Applicationslast 30 patents

  • Information Patent Application

    Ball valve with interlocking stem
    • Publication number 20060196567
    • Publication date Sep 7, 2006
    • Robert B. Gruener
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ball valve with snap-in stem
    • Publication number 20060180218
    • Publication date Aug 17, 2006
    • Robert B. Gruener
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...