3833779

Information

• Patent Grant
• 3833779

• References
• Source

• Patent Number

  3,833,779

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1974
  50 years ago

• CPC

  • G04F3/027 - using electrical contacts
  • G07C3/02 - Registering or indicating working or idle time only
  • Y10T307/951 - With time delay or retardation means

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 307 - Electrical transmission or interconnection systems
  • 348 - Television
  • 439 - Electrical connectors
  • 968 - Horology