CH70631A
(en )
1915-10-16
Process for the production of colors for printing and painting
CH70445A
(en )
1915-09-16
Process for the production of waterproof and fade-proof colors
FR462452A
(en )
1914-01-28
Process for the production of printing ink
FR444175A
(en )
1912-10-11
Process for the production of aminoanthraquinones
CH74135A
(en )
1917-01-16
Process for the production of multicolored images
FR442443A
(en )
1912-08-31
Process for the production of imitations of art stained glass
FR435312A
(en )
1912-02-27
Process for the production of isoprene
FR398551A
(en )
1909-06-08
Process for the purification of acetylene
FR394463A
(en )
1909-01-25
Process for the production of printing plates
FR467076A
(en )
1914-06-03
Process for the production of formaldehyde
FR520111A
(en )
1921-06-21
Process for the production of color images
CH71342A
(en )
1915-12-16
Process for color printing
FR440130A
(en )
1912-07-02
Process for the production of isoprene
FR506619A
(en )
1920-08-26
Process for the production of nitrogen-substituted diaminodiarylthioketones and diaminodiarylketones
FR452246A
(en )
1913-05-10
Process for the production of isoprene
FR405572A
(en )
1910-01-07
Process for the manufacture of imitation furskins
FR514560A
(en )
1921-03-14
Process for the production of urea
FR478312A
(en )
1915-12-03
Process for obtaining cinematographic color views
FR466111A
(en )
1914-05-05
Color printing process
FR460296A
(en )
1913-11-27
Process for the production of oil colors
FR429696A
(en )
1911-09-28
Process for the production of ammonia
FR436680A
(en )
1912-04-02
Process for the production of ammonia
FR464432A
(en )
1914-03-20
Process for the manufacture of matches of all kinds
FR436277A
(en )
1912-03-23
Process for the manufacture of multicolored chains
FR503382A
(en )
1920-06-09
Process for the manufacture of windows giving the impression of stained glass