using means not contacting the record carrier

Patents Grantslast 30 patents

  • Information Patent Grant

    3912278

    • Patent number 3,912,278
    • Issue date Oct 14, 1975
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3220739

    • Patent number 3,220,739
    • Issue date Nov 30, 1965
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2744212

    • Patent number 2,744,212
    • Issue date May 1, 1956
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2582939

    • Patent number 2,582,939
    • Issue date Jan 15, 1952
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR