3722238

Information

• Patent Grant
• 3722238

• References
• Source

• Patent Number

  3,722,238

• Date Filed

  Not available

• Date Issued

  Tuesday, March 27, 1973
  51 years ago

• CPC

  • G07C9/00682 - actuated repeatedly
  • Y10T70/7068 - Actuated after correct combination recognized [e.g., numerical, alphabetical, or magnet[s] pattern]
  • Y10T70/7311 - Step-by-step

• US Classifications

  • 070 - Locks
  • 200 - Electricity: circuit makers and breakers
  • 340 - Communications: electrical
  • 361 - Electricity: electrical systems and devices