1931790

Information

• Patent Grant
• 1931790

• References
• Source

• Patent Number

  1,931,790

• Date Filed

  Not available

• Date Issued

  Tuesday, October 24, 1933
  91 years ago

• CPC

  • H04L17/20 - using perforating recorders
  • Y10T83/121 - With means to accomplish delayed stopping after cessation of cyclic operation

• US Classifications

  • 178 - Telegraphy
  • 083 - Cutting