CH55498A
(en )
1912-08-16
Air filter
FR439589A
(en )
1912-06-17
Gas scrubber and purifier
CH55928A
(en )
1912-12-02
Process for cleaning gases and for recovering the dust carried along by dry means
CH42854A
(en )
1909-03-16
Equipment in chimneys for cleaning the flue gases
CH55443A
(en )
1912-08-16
Device for disinfecting and deodorising air
FR451564A
(en )
1913-04-22
Device for cleaning and scraping metal surfaces
CH56787A
(en )
1912-12-02
Device for preventing sparks and glowing slag from being ejected from locomotives
CH42290A
(en )
1909-01-16
Process and device for smoke combustion
CH66430A
(en )
1914-09-16
Device for drying and purifying air
AT80080B
(en )
1920-02-25
Device for separating dust from air and gases Device for separating dust from air and gases. n.
CH59098A
(en )
1913-04-16
Device for diluting the smoke gases emitted from chimneys
FR401487A
(en )
1909-08-31
Device that burns smoke and stops sparks
CH47416A
(en )
1910-07-01
Device for cleaning air filled with dust
FR400436A
(en )
1909-07-27
Gas purifier
FR423918A
(en )
1911-05-01
Gas purifier
CH59250A
(en )
1913-05-02
Method and device for increasing the efficiency of air cooling systems
CH63552A
(en )
1914-02-02
Device for vacuuming and collecting dust
FR431931A
(en )
1911-11-23
Food water filter sterilizer and industrial water purifier
FR421186A
(en )
1911-02-16
Gas purifier
FR418899A
(en )
1910-12-21
Flue gas purification device
CH46579A
(en )
1910-04-01
Device for knocking off dust from air filters
CH51771A
(en )
1911-09-16
Device for utilizing the heat of combustion gases
CH59993A
(en )
1913-06-16
Method and device for the full utilization of the heating gases
CH76807A
(en )
1918-02-01
Process and device for cleaning air and gases
CH54460A
(en )
1912-06-01
Chimney cleaning device