TREA

Alvin J. Character

Follow

Person

  • Maple Heights, OH, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Check valve floor drain
    • Patent number 10,082,213
    • Issue date Sep 25, 2018
    • Alvin J. Character
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Check valve floor drain
    • Patent number 9,790,678
    • Issue date Oct 17, 2017
    • Alvin J. Character
    • E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    CHECK VALVE FLOOR DRAIN
    • Publication number 20160265673
    • Publication date Sep 15, 2016
    • Alvin J. Character
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...