3552309

Information

• Patent Grant
• 3552309

• References
• Source

• Patent Number

  3,552,309

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1971
  54 years ago

• CPC

  • B41J33/516 - using a reversing-feeler responsive to the tension of the ribbon
  • B41J35/14 - for multicolour work for ensuring maximum life of ink ribbon for rendering ink-ribbon inoperative

• US Classifications

  • 101 - Printing