CH71163A
(en )
1915-12-01
Annealing and melting furnace with a device for heating it with a tar-air mixture
CH70793A
(en )
1916-03-16
Furnace for melting metals
CH74535A
(en )
1917-03-01
Cooking device for melting and refining used pressure roller mass
CH64277A
(en )
1914-03-16
Device for closing the tapping opening in melting furnaces
CH72191A
(en )
1916-05-16
Melting processes for metallurgical purposes and regenerative melting furnaces for practicing the same
CH72403A
(en )
1916-05-16
Method and furnace for roasting ores
CH70405A
(en )
1915-09-16
Heating device for furnaces for annealing, tempering, burning, melting or the like
CH60270A
(en )
1913-07-01
Furnace with smoke burning device
DK21669C
(en )
1916-11-27
Apparatus for regulating the heat in a melting furnace.
CH46680A
(en )
1910-04-01
Furnace for heating with fuel waste
FR520656A
(en )
1921-06-29
Heat recovery device for metal melting furnaces in crucibles
CH69969A
(en )
1915-08-02
Melting kettle with furnace
DK21304C
(en )
1916-06-26
Apparatus for regulating the temperature in melting furnaces.
CH71672A
(en )
1916-02-01
Plant for heating greenhouses
CH70580A
(en )
1915-10-01
Annealing furnace with tar and oil firing
CH69442A
(en )
1915-06-16
Device for temperature compensation in a vertical direction in rooms with central heating
CH67935A
(en )
1915-02-01
Safety device on melting furnaces
DK19217C
(en )
1914-09-07
Method and device for heating gas production furnaces with generator gas and light gas.
CH67730A
(en )
1915-01-16
Method and device for discharging sintered material to be fired from furnaces with a horizontal firing channel
FR491578A
(en )
1919-06-07
Improvements in melting furnaces
FR482361A
(en )
1917-03-16
Improvements in melting furnaces
AT87481B
(en )
1922-02-25
Shaft furnace for burning cement with discharge and breaking device.
CH69731A
(en )
1915-07-16
Heating device
FR551926A
(en )
1923-04-17
Advanced heat recovery unit for continuous flame furnaces
FR483630A
(en )
1917-07-26
Method and device for alternative cooling and heating