1411939

Information

• Patent Grant
• 1411939

• References
• Source

• Patent Number

  1,411,939

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1922
  102 years ago

• CPC

  • B61F15/28 - Axle-boxes modified to ensure electrical conductivity

• US Classifications

  • 105 - Railway rolling stock
  • 200 - Electricity: circuit makers and breakers