CH73389A
(en )
1916-10-02
Kaleidoscopic projection apparatus for generating surface patterns for handicraft drawing and teaching purposes
CH74295A
(en )
1917-02-01
Kaleidoscopic projection apparatus for generating surface patterns for handicraft drawing and teaching purposes
CH74294A
(en )
1917-02-01
Kaleidoscopic projection apparatus for generating surface patterns for handicraft drawing and teaching purposes
CH72738A
(en )
1916-11-16
Method and apparatus for the photomechanical production of decorative patterns for printing purposes
FR481849A
(en )
1917-01-23
Pneumatic massage method and apparatus
CH75825A
(en )
1917-10-01
Device for producing foam for fire extinguishing purposes
CH74234A
(en )
1917-02-01
Process and device for the production of embossed imitations
CH48636A
(en )
1910-11-01
Apparatus for generating steam for bed steam baths
CH66913A
(en )
1914-10-16
Device for making surface patterns
CH45448A
(en )
1909-11-16
Apparatus for generating acetylene gas
CH51919A
(en )
1911-10-02
Apparatus for making incisions in chestnuts
FR484913A
(en )
1917-11-22
Filtration apparatus
CH73468A
(en )
1916-10-02
Process for the production of calcium cyanamide
FR480556A
(en )
1916-08-24
Perspector apparatus
CH53861A
(en )
1912-04-01
Portable device for generating large masses of flame
CH58635A
(en )
1913-03-17
Method and device for the production of silk and other fine fabrics
CH73304A
(en )
1916-09-16
Ruling and calculating apparatus for teaching purposes
FR442728A
(en )
1912-09-07
Light projection method and apparatus
FR16464E
(en )
1913-02-06
Light projection method and apparatus
CH51608A
(en )
1911-09-01
Process for the production of artificial stone
CH76206A
(en )
1917-11-16
Process for the reproduction of surface patterns
CH52933A
(en )
1912-01-02
Method and device for producing the working surfaces of gear drives
CH55101A
(en )
1912-09-02
Device for generating cold
CH62530A
(en )
1913-12-01
Method and device for generating gaseous fuels
CH72152A
(en )
1916-04-01
Method and device for the production of sand-lime bricks