TREA

Roland Ehmsen

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  • Weinheim, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Seal for a reciprocating rod
    • Patent number 5,346,230
    • Issue date Sep 13, 1994
    • Firma Carl Freudenberg
    • Herbert Schumacher
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ferrofluid seal for a shaft
    • Patent number 5,092,611
    • Issue date Mar 3, 1992
    • Firma Carl Freudenberg
    • Roland Ehmsen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...