having automatic means for changing type-characters

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for intaglio printing and selectively alterable inking plate...

    • Patent number 4,473,008
    • Issue date Sep 25, 1984
    • RCA Corporation
    • Philip M. Heyman
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3872787

    • Patent number 3,872,787
    • Issue date Mar 25, 1975
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3344739

    • Patent number 3,344,739
    • Issue date Oct 3, 1967
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    3261283

    • Patent number 3,261,283
    • Issue date Jul 19, 1966
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    3173359

    • Patent number 3,173,359
    • Issue date Mar 16, 1965
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2661896

    • Patent number 2,661,896
    • Issue date Dec 8, 1953
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2255453

    • Patent number 2,255,453
    • Issue date Sep 9, 1941
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2207966

    • Patent number 2,207,966
    • Issue date Jul 16, 1940
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES