2313560

Information

• Patent Grant
• 2313560

• References
• Source

• Patent Number

  2,313,560

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1943
  81 years ago

• CPC

  • G08B5/28 - with hinged flap or arm
  • Y10T307/74 - Switching systems

• US Classifications

  • 340 - Communications: electrical
  • 307 - Electrical transmission or interconnection systems
  • 315 - Electric lamp and discharge devices: systems