1744517

Information

• Patent Grant
• 1744517

• References
• Source

• Patent Number

  1,744,517

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1930
  95 years ago

• CPC

  • F24D3/147 - arranged in facades

• US Classifications

  • 165 - Heat exchange
  • 237 - Heating systems