AT176938B
(en )
1953-12-10
Automatic charging device for steam boiler systems, in particular for flame tube boilers
NL161572B
(en )
HEATING BOILER.
CH224929A
(en )
1942-12-31
Pipe wall on steam boilers.
NL180137B
(en )
HEATING BOILER.
AT170697B
(en )
1952-03-10
Combustion controller for hot water or low pressure steam boilers
ES171664A1
(en )
1945-12-16
AN AUTOMATIC WATER FEED DEVICE IN STEAM BOILERS.
DK79374C
(en )
1955-06-13
Flue pipe boiler.
DK80354C
(en )
1956-01-02
Water pipe boiler.
DK83052C
(en )
1957-07-01
Soot blower for steam boiler systems.
AT176566B
(en )
1953-11-10
Heat exchangers, in particular steam boilers
FR1044345A
(en )
1953-11-17
Steam boiler with suspended superheater
DK79531C
(en )
1955-07-11
Device for hot water storage boilers.
AT180114B
(en )
1954-11-10
Melt firing, especially for pulverized coal-fired radiant boilers
DK79422C
(en )
1955-06-20
Magazine-fired hot water boiler.
FR1019812A
(en )
1953-01-27
Steam boiler
DE1633734U
(en )
1952-01-24
STANDING FIRE BOILER WITH CROSS PIPES.
AU148734B2
(en )
1951-05-24
Flue tubes for steam boilers
AT185920B
(en )
1956-06-25
Traveling grate firing with throw feeder, especially for steam boilers
DK87199C
(en )
1959-04-27
Pipe steam boiler.
ES169794A1
(en )
1945-06-01
AN AUTOMATIC WATER RETENTION AND FEED APPARATUS, APPLICABLE TO STEAM BOILERS
DK82312C
(en )
1956-11-19
Steep pipe boiler.
DK78098C
(en )
1954-09-13
Exhaust valve for steam boilers.
FR1038931A
(en )
1953-10-02
Dry boiler with instantaneous steam generation
AU157051A
(en )
1951-05-24
Flue tubes for steam boilers
ES23918Y
(en )
1957-08-16
Automatic regulator for boilers