CH75979A
(en )
1918-03-16
Process for the impregnation of rubber articles
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH76373A
(en )
1917-12-01
Process for the preparation of glycolyl-p-phenetidide
CH70774A
(en )
1915-11-01
Process for making rubber articles
CH79939A
(en )
1919-01-16
Process for the production of fibers
CH78380A
(en )
1918-11-16
Process for the preparation of hydrocodeine
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH81317A
(en )
1919-06-02
Process for the production of leather
CH77112A
(en )
1918-03-01
Process for making shoes
AT76380B
(en )
1919-05-10
Process and system for the production of pre-doughs.
CH78275A
(en )
1919-01-02
Process for the preparation of acetaldehyde
CH74900A
(en )
1917-05-01
Process for the manufacture of pneumatic jackets
CH77110A
(en )
1918-08-01
Process for the production of artificial leather
CH77381A
(en )
1918-09-02
Process for the production of artificial leather
CH75980A
(en )
1918-03-16
Process for the production of artificial leather
CH74747A
(en )
1917-09-01
Process for the preparation of ß-aminoanthraquinone
CH77919A
(en )
1918-06-01
Process for the production of footwear running parts
CH75897A
(en )
1917-10-01
Process for the production of drive belts
CH78165A
(en )
1918-11-16
Process for the preparation of hydromorphine
CH77232A
(en )
1918-03-16
Process for the production of textile fibers
CH77107A
(en )
1918-03-01
Process for the purification of decomposition products of the protein bodies
CH75875A
(en )
1917-10-01
Process for the production of potassium persulfate
CH76096A
(en )
1918-04-01
Process for the production of urea
CH77932A
(en )
1918-06-17
Process for the production of calcium cyanamide
AT91349B
(en )
1923-02-26
Process for the production of leather.