420973

Information

• Patent Grant
• 420973

• References
• Source

• Patent Number

  420,973

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1890
  135 years ago

• CPC

  • B61K11/02 - Water columns for locomotives
  • Y10T137/5345 - Rotating riser

• US Classifications

  • 137 - Fluid handling