1643622

Information

• Patent Grant
• 1643622

• References
• Source

• Patent Number

  1,643,622

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1927
  97 years ago

• CPC

  • F01P7/082 - using friction clutches

• US Classifications

  • 416 - Fluid reaction surfaces
  • 122 - Liquid heaters and vaporizers