1803987

Information

• Patent Grant
• 1803987

• References
• Source

• Patent Number

  1,803,987

• Date Filed

  Not available

• Date Issued

  Tuesday, May 5, 1931
  94 years ago

• CPC

  • B61C17/08 - Lubrication systems
  • B61C9/04 - consisting of cranked axles and coupling rods

• US Classifications

  • 105 - Railway rolling stock