2108785

Information

• Patent Grant
• 2108785

• References
• Source

• Patent Number

  2,108,785

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1938
  86 years ago

• CPC

  • F04B39/068 - prevention of freezing

• US Classifications

  • 417 - Pumps
  • 092 - Expansible chamber devices