2162442

Information

• Patent Grant
• 2162442

• References
• Source

• Patent Number

  2,162,442

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1939
  85 years ago

• CPC

  • G08B25/12 - Manually actuated calamity alarm transmitting arrangements emergency non-personal manually actuated alarm, activators
  • Y10T70/7017 - Interval terminating

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 070 - Locks