2220407

Information

• Patent Grant
• 2220407

• References
• Source

• Patent Number

  2,220,407

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1940
  84 years ago

• CPC

  • B61L5/125 - Fixed signals, beacons, or the like
  • B61L5/206 - Signalling means for special purposes

• US Classifications

  • 246 - Railway switches and signals
  • 007 - Compound tools
  • 102 - Ammunition and explosives
  • 206 - Special receptacle or package
  • 362 - Illumination
  • 431 - Combustion