2877718

Information

• Patent Grant
• 2877718

• References
• Source

• Patent Number

  2,877,718

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1959
  65 years ago

• CPC

  • B65G51/42 - according to indications on carriers
  • B61L23/005 - Automatic control or safety means for points for operator-less railway
  • B65G47/496 - by use of magnetic responsive means

• US Classifications

  • 104 - Railways
  • 246 - Railway switches and signals
  • 353 - Optics: image projectors
  • 406 - Conveyors: fluid current