TREA

Thomas J. Gustafson

Follow

Person

  • Brooklyn Park, MN, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Pump seal with curved backup plate
    • Patent number 4,637,295
    • Issue date Jan 20, 1987
    • Frederick A. Powers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...