3531592

Information

• Patent Grant
• 3531592

• References
• Source

• Patent Number

  3,531,592

• Date Filed

  Not available

• Date Issued

  Tuesday, September 29, 1970
  54 years ago

• CPC

  • B41J35/14 - for multicolour work for ensuring maximum life of ink ribbon for rendering ink-ribbon inoperative
  • B41J33/60 - responsive to telegraph code or other extraneous signals

• US Classifications

  • 178 - Telegraphy
  • 400 - Typewriting machines