3542183

Information

• Patent Grant
• 3542183

• References
• Source

• Patent Number

  3,542,183

• Date Filed

  Not available

• Date Issued

  Tuesday, November 24, 1970
  54 years ago

• CPC

  • B41J33/518 - the reversing-feeler engaging buttons or the like secured to the ribbon near its end
  • B41J33/18 - by ratchet mechanism
  • B41J33/50 - comprising a single pawl or integral double-tooth pawl selectively engageable with two ratchets, one for each spool

• US Classifications

  • 400 - Typewriting machines