1791308

Information

• Patent Grant
• 1791308

• References
• Source

• Patent Number

  1,791,308

• Date Filed

  Not available

• Date Issued

  Tuesday, February 3, 1931
  93 years ago

• CPC

  • B61L11/02 - Using mechanical interaction between vehicle and track

• US Classifications

  • 246 - Railway switches and signals
  • 235 - Registers