CH127438A
(en )
1928-09-01
Procedure for the representation of 1. 4-diamino-2-chloro-3-thiohydrin-anthraquinone.
AT109331B
(en )
1928-04-10
Method and device for multiple remote transmission of current changes.
CH160118A
(en )
1933-02-28
Method and device for ventilation of rooms.
CH158174A
(en )
1932-11-15
Method and device for the production of road surfaces.
AT107988B
(en )
1927-11-25
Method and device for processing cellulose.
CH122398A
(en )
1927-09-16
Electrode and method of making the same.
AT109538B
(en )
1928-05-10
Equipment for surface treatment and impregnation of roads.
AT108110B
(en )
1927-11-25
Method and device for the electrolysis of chlor-alkalis.
CH152993A
(en )
1932-02-29
Method and device for the continuous production of ice.
CH152869A
(en )
1932-02-29
Method and device for denicotinization of tobacco.
CH212742A
(en )
1940-12-15
Method and device for the transmission of messages.
AT108627B
(en )
1928-01-25
Method and device for the production of spiral-shaped incandescent bodies.
AT121501B
(en )
1931-02-25
Device for synchronous remote transmission of lettering and symbols.
AT111009B
(en )
1928-10-25
Method and device for making collars.
CH144066A
(en )
1930-12-15
File and method of making the same.
AT108703B
(en )
1928-01-25
Process for the preparation of quinoline derivatives.
CH145542A
(en )
1931-02-28
Circuit device for remote control of switches.
CH182727A
(en )
1936-02-29
Process and device for the production of low-boiling hydrocarbons.
AT121515B
(en )
1931-02-25
Method and device for determining the elasticity of paper, foils and the like like
CH152812A
(en )
1932-02-29
Method and device for the production of cement.
AT132034B
(en )
1933-02-25
Process for the preparation of thymol and menthol.
CA265131A
(en )
1926-10-19
Disinfecting method and apparatus
AT108011B
(en )
1927-11-25
Device for electromagnetic clutch and switching of change gears.
CH111240A
(en )
1925-08-01
Process for the preparation of oxycodeinone.
GR1145B
(en )
1926-03-17
LIQUID FOR INDUSTRIAL PURPOSES AND METHOD OF MAKING IT.