3504780

Information

• Patent Grant
• 3504780

• References
• Source

• Patent Number

  3,504,780

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1970
  54 years ago

• CPC

  • H04L13/186 - Page printing; tabulating
  • B41J19/78 - Positive-feed mechanisms

• US Classifications

  • 400 - Typewriting machines
  • 178 - Telegraphy