2274942

Information

• Patent Grant
• 2274942

• References
• Source

• Patent Number

  2,274,942

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1942
  83 years ago

• CPC

  • F16N7/366 - with feed by pumping action of a vertical shaft of the machine
  • F25B31/002 - lubrication
  • F16N2210/10 - Refrigerators

• US Classifications

  • 092 - Expansible chamber devices
  • 417 - Pumps