1881878

Information

• Patent Grant
• 1881878

• References
• Source

• Patent Number

  1,881,878

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1932
  92 years ago

• CPC

  • B64C13/42 - having duplication or stand-by provisions
  • Y10S200/14 - Rail or leak indicator

• US Classifications

  • 340 - Communications: electrical
  • 109 - Safes, bank protection, or a related device
  • 200 - Electricity: circuit makers and breakers