1811776

Information

• Patent Grant
• 1811776

• References
• Source

• Patent Number

  1,811,776

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1931
  93 years ago

• CPC

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

• US Classifications

  • 246 - Railway switches and signals