3640370

Information

• Patent Grant
• 3640370

• References
• Source

• Patent Number

  3,640,370

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1972
  52 years ago

• CPC

  • H04L17/16 - Apparatus or circuits at the receiving end
  • B41J19/76 - Line-spacing mechanisms

• US Classifications

  • 400 - Typewriting machines
  • 178 - Telegraphy