1790473

Information

• Patent Grant
• 1790473

• References
• Source

• Patent Number

  1,790,473

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1931
  94 years ago

• CPC

  • F24D3/147 - arranged in facades

• US Classifications

  • 165 - Heat exchange
  • 237 - Heating systems