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Robert C. Stewart

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  • Worthington, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Curb box for plastic valve
    • Patent number 4,331,178
    • Issue date May 25, 1982
    • Handley Industries, Inc.
    • Edward W. Handley
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Curb box with snap-on base
    • Patent number 4,310,015
    • Issue date Jan 12, 1982
    • Robert C. Stewart
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...