CH76807A
(en )
1918-02-01
Process and device for cleaning air and gases
CH77184A
(en )
1918-03-16
Process and device for cleaning air and gases
CH62520A
(en )
1913-12-01
Method and device for drying and purifying air
CH66429A
(en )
1914-09-01
Method and device for drying and purifying air
CH66430A
(en )
1914-09-16
Device for drying and purifying air
CH58178A
(en )
1913-02-17
Method and device for keeping mustard fresh
CH76738A
(en )
1918-02-01
Process and device for the separation of gas mixtures by means of rectification
CH79178A
(en )
1918-10-16
Method and device for automatic control of the flow of washing liquids for gases
CH76639A
(en )
1918-02-01
Process for the separation of air or other gas mixtures
CH77756A
(en )
1918-05-16
Process for the separation of air or other gas mixtures
CH72421A
(en )
1916-05-16
Process for the separation of air or other gas mixtures
CH68323A
(en )
1915-03-01
Apparatus for the purification of gases and for the recovery of the dust carried along
CH66501A
(en )
1914-09-16
Method and device for carrying out electroosmotic processes
CH80596A
(en )
1919-03-01
Process and device for the extraction of pure oxygen and nitrogen from the air
CH73378A
(en )
1916-10-02
Process for obtaining nitrogen from air
CH75661A
(en )
1917-09-01
Method and device for the production of folded paper tubes
AT80080B
(en )
1920-02-25
Device for separating dust from air and gases Device for separating dust from air and gases. n.
CH59993A
(en )
1913-06-16
Method and device for the full utilization of the heating gases
CH65413A
(en )
1914-06-16
Method and device for the separation of gas mixtures
CH76770A
(en )
1918-07-01
Method and device for generating heat
CH76103A
(en )
1917-11-01
Method and device for the production of paper bags
CH79880A
(en )
1919-01-16
Process and device for continuous sterilization and purification of the air using ozonated water
CH76255A
(en )
1917-11-16
Device for parallel and series connection of resistors
CH68829A
(en )
1915-05-01
Device for conveying air
CH77384A
(en )
1918-04-16
Method and device for making used envelopes reusable