1561461

Information

• Patent Grant
• 1561461

• References
• Source

• Patent Number

  1,561,461

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1925
  99 years ago

• CPC

  • F24H6/00 - Combined water and air heaters
  • Y10S165/128 - including air draft passage for heating ambient air

• US Classifications

  • 165 - Heat exchange
  • 237 - Heating systems