3679976

Information

• Patent Grant
• 3679976

• References
• Source

• Patent Number

  3,679,976

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1972
  52 years ago

• CPC

  • G04F13/00 - Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00
  • G01R22/04 - by calorimetric methods
  • G07C3/02 - Registering or indicating working or idle time only

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 324 - Electricity: measuring and testing
  • 361 - Electricity: electrical systems and devices