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Rudolf Graf

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  • Oberentfelden, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrically insulating plastic element for an electrical switching...
    • Patent number 4,418,256
    • Issue date Nov 29, 1983
    • Sprecher & Schuh AG
    • Rudolf Graf
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas-blast switch
    • Patent number 4,378,477
    • Issue date Mar 29, 1983
    • Sprecher & Schuh AG
    • Rudolf Graf
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas-blast switch
    • Patent number 4,351,993
    • Issue date Sep 28, 1982
    • Sprecher & Schuh AG
    • Rudolf Graf
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas-blast switch
    • Patent number 4,342,890
    • Issue date Aug 3, 1982
    • Sprecher & Schuh AG
    • Rudolf Graf
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas-blast switch
    • Patent number 4,329,553
    • Issue date May 11, 1982
    • Sprecher & Schuh AG
    • Rudolf Graf
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas-blast switch
    • Patent number 4,320,270
    • Issue date Mar 16, 1982
    • Sprecher & Schuh AG
    • Rudolf Graf
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Puffer interrupter with main and auxiliary pistons and common cylinder
    • Patent number 4,103,131
    • Issue date Jul 25, 1978
    • Sprecher & Schuh Ltd. (SSA)
    • Rudolf Graf
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas-blast switch
    • Patent number 3,988,554
    • Issue date Oct 26, 1976
    • Sprecher & Schuh AG
    • Rudolf Graf
    • H01 - BASIC ELECTRIC ELEMENTS