3707842

Information

• Patent Grant
• 3707842

• References
• Source

• Patent Number

  3,707,842

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1973
  52 years ago

• CPC

  • G04F1/066 - using electrical contact device

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 340 - Communications: electrical
  • 968 - Horology
  • D10 - Measuring, testing, or signalling instruments