3805121

Information

• Patent Grant
• 3805121

• References
• Source

• Patent Number

  3,805,121

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  51 years ago

• CPC

  • G07C9/00023 - the system having a variable access-code
  • E05B49/004 - actuating mechanical switches

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 200 - Electricity: circuit makers and breakers