Welded steel boiler
United States Patent 2736298
US Patent References:
/0323957.html
- - 0323957

/0696714.html
- - 0696714

Oil furnace
- - 2117511

Boiler
- - 2195274

Boiler or water-heating unit
- - 2305847


Inventors:
Frank, Smith
Publication Date:
02/28/1956
View Patent Images:
Assignee:
Frank, Smith
Primary Class:
Other Classes:
122/336, 165/134.100, 122/DIG.016, 122/333
International Classes:
F22B21/04; F23M5/00; F24H1/44; F22B21/00; F24H1/22
US Patent References:
2327750Superheating flash boiler
2362107Apparatus for heating fluids
2607325Vertical water-tube boiler with removable combustion chamber
Foreign References:
GB575083A