2701301

Information

• Patent Grant
• 2701301

• References
• Source

• Patent Number

  2,701,301

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1955
  70 years ago

• CPC

  • B61L1/161 - characterised by the counting methods
  • B61L1/165 - Electrical
  • B61L1/167 - Circuit details
  • H03K21/02 - Input circuits

• US Classifications

  • 246 - Railway switches and signals
  • 235 - Registers