CH71202A
(en )
1915-12-01
Process for making photographic images
AT52263B
(en )
1912-02-26
Process for making combination photographic negatives.
CH53092A
(en )
1912-01-16
Process for the production of combined photographic images
CH73591A
(en )
1916-10-16
Process for the production of colored stereo images
CH59910A
(en )
1913-06-02
Process for producing colored photographic images
CH72355A
(en )
1916-05-01
Process for the production of road surfaces
CH71918A
(en )
1916-03-01
Process for the production of aluminum hydroxide
CH76038A
(en )
1917-10-16
Process for the production of sodium amide
CH70797A
(en )
1915-10-16
Process for making diaphanous watercolors
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH72736A
(en )
1916-06-16
Method and device for the production of photographic images which are composed of several recordings
CH71298A
(en )
1915-12-16
Process for making stained glass
AT74197B
(en )
1918-02-25
Process for making margarine.
CH71544A
(en )
1916-01-17
Process for the preparation of 4-methyl-1-oxyanthraquinone
CH69955A
(en )
1915-08-02
Process for the preparation of 4-chloro-1-oxyanthraquinone
CH71280A
(en )
1915-12-16
Process for making whey lemonade
CH73203A
(en )
1916-09-01
Process for the production of relief maps with printing
CH68153A
(en )
1915-02-16
Process for the production of fuel
CH76040A
(en )
1917-10-16
Process for the production of sodium amide
CH76039A
(en )
1917-10-16
Process for the production of sodium amide
CH74226A
(en )
1917-02-01
Process for the production of sodium amide
CH57863A
(en )
1913-02-01
Process for the preparation of p-aminobenzoylquinine
CH55542A
(en )
1912-08-16
Process for the preparation of allophanoic acid chloride
CH78372A
(en )
1918-07-16
Process for the manufacture of stamps
CH71053A
(en )
1915-11-16
Process for the production of art prints