comprising two pawls and ratchets, one for each spool

Patents Grantslast 30 patents

  • Information Patent Grant

    Reversible ink ribbon feed mechanism

    • Patent number 4,502,803
    • Issue date Mar 5, 1985
    • Brother Kogyo Kabushiki Kaisha
    • Shigenori Hattori
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Inked ribbon advance and reverse mechanism

    • Patent number 4,381,155
    • Issue date Apr 26, 1983
    • C. Itoh Electronics, Inc.
    • Nicholas Kondur
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Reversible ribbon drive mechanism

    • Patent number 4,019,618
    • Issue date Apr 26, 1977
    • Addmaster Corporation
    • Richard E. Busch
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Typewriter ribbon conveying mechanism

    • Patent number 3,976,185
    • Issue date Aug 24, 1976
    • Hermes Precisa International S.A.
    • Otto Aebi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3907094

    • Patent number 3,907,094
    • Issue date Sep 23, 1975
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3899065

    • Patent number 3,899,065
    • Issue date Aug 12, 1975
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3658164

    • Patent number 3,658,164
    • Issue date Apr 25, 1972
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3630337

    • Patent number 3,630,337
    • Issue date Dec 28, 1971
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3602353

    • Patent number 3,602,353
    • Issue date Aug 31, 1971
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3184027

    • Patent number 3,184,027
    • Issue date May 18, 1965
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3145651

    • Patent number 3,145,651
    • Issue date Aug 25, 1964
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2906203

    • Patent number 2,906,203
    • Issue date Sep 29, 1959
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2886162

    • Patent number 2,886,162
    • Issue date May 12, 1959
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2725969

    • Patent number 2,725,969
    • Issue date Dec 6, 1955
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2505991

    • Patent number 2,505,991
    • Issue date May 2, 1950
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents