1937145

Information

• Patent Grant
• 1937145

• References
• Source

• Patent Number

  1,937,145

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1933
  91 years ago

• CPC

  • B41J33/518 - the reversing-feeler engaging buttons or the like secured to the ribbon near its end
  • B41K3/58 - using ink ribbons, ink sheets, or carbon tape or paper
  • B41L47/24 - Mechanisms for conveying copy material through addressographs or like series-printing machines
  • B41L47/48 - with inking or ink-ribbon devices

• US Classifications

  • 101 - Printing
  • 400 - Typewriting machines