3676878

Information

• Patent Grant
• 3676878

• References
• Source

• Patent Number

  3,676,878

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1972
  52 years ago

• CPC

  • G08B26/008 - central annunciator means of the sensed conditions
  • G07C3/045 - Mechanical counters or clocks

• US Classifications

  • 340 - Communications: electrical