3819885

Information

• Patent Grant
• 3819885

• References
• Source

• Patent Number

  3,819,885

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • G04F3/027 - using electrical contacts

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 968 - Horology