CH78516A
(en )
1918-08-01
Procedure for unloading and reloading gas retorts
CH78964A
(en )
1918-09-16
Process for smelting smelting materials
CH79851A
(en )
1919-05-16
Expansion nozzle for gases or vapors
FR498398A
(en )
1920-01-09
Combined retort and oven
CH81361A
(en )
1919-11-01
Process for the operation of multi-stage jet devices for compressing gases or vapors
FR489452A
(en )
1919-02-08
Gas scrubber
CH80880A
(en )
1919-09-01
Process for compressing air or charge mixture for gas turbines
CH82032A
(en )
1919-08-16
Process for roasting fibrous materials
CH80067A
(en )
1919-02-01
Device for utilizing the heating power of flue gases
AT87512B
(en )
1922-03-10
Equipment for the operation of furnaces.
FR522947A
(en )
1921-08-09
Combined retort and oven
DK26539C
(en )
1920-08-30
Procedure and Apparatus for the Combustion of Sulfur.
ES67403A1
(en )
1918-08-01
A method of electrically treating gases and vapors.
CH81096A
(en )
1919-10-01
Process for briquetting fuels
CH80578A
(en )
1919-08-01
Process for the operation of gear drives
CH80939A
(en )
1919-04-16
Apparatus for igniting combustion material by means of gas
CH78963A
(en )
1918-09-16
Process and device for the reduction of ores
FR515118A
(en )
1921-03-24
Retort oven
CH81299A
(en )
1919-11-01
Method and device for closing storage containers
CH79874A
(en )
1919-05-16
Gas lighter
FR488830A
(en )
1918-11-19
Further development of autoclaves
CH77880A
(en )
1918-06-01
Method and apparatus for ventilating haysticks
CH78688A
(en )
1918-08-16
Soldering iron and process for its manufacture
CH81391A
(en )
1919-10-16
Apparatus for ventilating haysticks
CH77895A
(en )
1918-11-01
Briquette and process for its manufacture