CH53487A
(en )
1912-03-01
Apparatus for removing odor from exhaust gases
CH77930A
(en )
1918-11-01
Apparatus for suppressing smoke, dust and vapors
CH59063A
(en )
1913-04-16
Apparatus for testing gases
CH46332A
(en )
1910-02-16
Apparatus for evolving gases
CH54035A
(en )
1912-04-16
Apparatus for indicating gas leaks
CH53146A
(en )
1912-02-01
Apparatus for generating gas
CH52782A
(en )
1912-01-02
Method and apparatus for purifying boiler feed water
CH51787A
(en )
1911-09-16
Device for cleaning lamp cylinders
CH52292A
(en )
1911-11-01
Apparatus for testing eggs
CH56591A
(en )
1912-11-16
Apparatus for decorating cakes etc.
CH70764A
(en )
1915-11-01
Process for dedusting exhaust gases
CH49735A
(en )
1911-03-16
Apparatus for cleaning floors
CH56878A
(en )
1912-12-02
Apparatus for testing gases and liquids
CH51503A
(en )
1911-09-01
Device for cleaning tobacco pipes
CH51824A
(en )
1911-09-16
Apparatus for testing gas mixtures for the admixture of certain types of gas
CH48067A
(en )
1910-09-16
Device for removing ash from ovens
CH44482A
(en )
1909-08-16
Method and apparatus for rendering the exhaust gases from petroleum stoves odorless and harmless
CH68674A
(en )
1915-04-01
Apparatus for retouching
CH33796A
(en )
1906-01-15
Apparatus for scrubbing gases
CH53685A
(en )
1912-03-16
Method and apparatus for rendering harmless and eliminating dust and engine exhaust gases blown up by motor vehicles
CH51086A
(en )
1911-07-17
Apparatus for opening cans
CH54378A
(en )
1912-06-01
Device for discharging the exhaust steam from steam engines for further use of the same
CH54905A
(en )
1912-07-01
Device for cleaning and odorless combustion gases
CH65474A
(en )
1914-06-16
Apparatus for trapping harmful animals
CH51310A
(en )
1911-08-16
Apparatus for treating solids with gases