2376389

Information

• Patent Grant
• 2376389

• References
• Source

• Patent Number

  2,376,389

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1945
  80 years ago

• CPC

  • G07C1/20 - Checking timed patrols
  • Y10T70/675 - Serially operable
  • Y10T70/7729 - Permutation
  • Y10T70/7734 - Automatically key set combinations

• US Classifications

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