TREA

Helmut Gelling

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  • Wangen, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rolling parallel printer
    • Patent number 4,214,521
    • Issue date Jul 29, 1980
    • Firma Precisa AG Rechenmaschinenfabrik
    • Helmut Gelling
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Paper-feeding apparatus for a printer
    • Patent number 4,212,554
    • Issue date Jul 15, 1980
    • Firma Precisa AG Rechenmaschinenfabrik
    • Helmut Gelling
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS