3184551

Information

• Patent Grant
• 3184551

• References
• Source

• Patent Number

  3,184,551

• Date Filed

  Not available

• Date Issued

  Tuesday, May 18, 1965
  59 years ago

• CPC

  • G04F3/022 - using mechanical signalling device
  • H04M15/30 - the meter or calculation of charges not being controlled from an exchange

• US Classifications

  • 379 - Telephonic communications
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology