2739265

Information

• Patent Grant
• 2739265

• References
• Source

• Patent Number

  2,739,265

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1956
  69 years ago

• CPC

  • B23D61/023 - with inserted segments having more than one tooth
  • H04Q3/42 - Circuit arrangements for indirect selecting controlled by common circuits
  • H04Q3/525 - using tubes in the switching stages

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 379 - Telephonic communications