3513957

Information

• Patent Grant
• 3513957

• References
• Source

• Patent Number

  3,513,957

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1970
  54 years ago

• CPC

  • B41J33/518 - the reversing-feeler engaging buttons or the like secured to the ribbon near its end
  • B41J35/28 - Detachable carriers or holders for ink-ribbon mechanisms

• US Classifications

  • 400 - Typewriting machines