1857643

Information

• Patent Grant
• 1857643

• References
• Source

• Patent Number

  1,857,643

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1932
  92 years ago

• CPC

  • B65G53/56 - Switches
  • Y10S200/15 - Bin alarm

• US Classifications

  • 406 - Conveyors: fluid current
  • 200 - Electricity: circuit makers and breakers
  • 340 - Communications: electrical