639394

Information

• Patent Grant
• 639394

• References
• Source

• Patent Number

  639,394

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1899
  125 years ago

• CPC

  • F22B35/105 - operating at sliding pressure

• US Classifications

  • 060 - Power plants
  • 180 - Motor vehicles
  • 415 - Rotary kinetic fluid motors or pumps