DK41667C
(en )
1930-02-17
Procedure for heating boilers by finely divided fuel and boiler for carrying out the procedure.
SU8872A1
(en )
1929-04-30
The method of heating steam boilers
DK40325C
(en )
1929-06-17
Device for regulating the firing by steam boilers.
CH130015A
(en )
1929-01-02
Gas burner.
DK41040C
(en )
1929-11-04
Fireplace for Steam Boilers.
DK41099C
(en )
1929-11-18
Fireplace for Steam Boilers.
FR628476A
(en )
1927-10-24
Boilers for burner heating
DK41072C
(en )
1929-11-11
Device by plug-in boilers.
DK36987C
(en )
1927-01-03
Burner for Gas Stoves.
DK40953C
(en )
1929-10-21
Device for Stoves for Liquid Fuel.
DK38230C
(en )
1927-12-12
Procedure for the Prevention of Deposition of Silica Boilers in Steam Boilers.
FR647615A
(en )
1928-11-27
advanced fuel saver for steam boilers
DK41828C
(en )
1930-03-17
Steam boiler system for fuel dust firing.
DK46005C
(en )
1932-08-01
Device by Central Heating Boilers.
DK35253C
(en )
1925-11-09
Transportable Fireplace for Heating Boilers or similar.
DK39347C
(en )
1928-10-08
Shut-off tap for heaters.
DK38494C
(en )
1928-02-27
Boiler for Built-in Stoves.
CA271936A
(en )
1927-06-28
Furnace for steam boilers
DK38944C
(en )
1928-07-02
Heating boiler with Heating jacket.
ES104321A1
(en )
1927-11-16
Improvements in vertical steam boilers with direct pipes.
DK43324C
(en )
1930-11-10
Device at Fireplaces for Powdered Fuel.
DK39688C
(en )
1929-01-07
Beaker Burner for Liquid Fuel.
DK39779C
(en )
1929-02-11
Steam boiler.
DK40159C
(en )
1929-05-21
Purifier for flue pipes.
ES99267A1
(en )
1926-11-01
A hot desulfurization process of the gases from the distillation or pyrogenation of solid, liquid or other fuels.