2220754

Information

• Patent Grant
• 2220754

• References
• Source

• Patent Number

  2,220,754

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1940
  84 years ago

• CPC

  • F24D1/02 - operating with live steam

• US Classifications

  • 237 - Heating systems
  • 165 - Heat exchange