Roger R. Newman

Person

  • Toronto, CA

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Temperate water supply system

    • Publication number 20050092261
    • Publication date May 5, 2005
    • Roger R. Newman
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Application

    Plumbing trap after-valve

    • Publication number 20040187925
    • Publication date Sep 30, 2004
    • Roger R. Newman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...