CH82821A
(en )
1919-10-16
Process for the production of tempered steel fittings
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH76373A
(en )
1917-12-01
Process for the preparation of glycolyl-p-phenetidide
CH79939A
(en )
1919-01-16
Process for the production of fibers
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH75875A
(en )
1917-10-01
Process for the production of potassium persulfate
AT76380B
(en )
1919-05-10
Process and system for the production of pre-doughs.
CH78790A
(en )
1918-09-02
Process for the production of emulsion for technical purposes
CH76096A
(en )
1918-04-01
Process for the production of urea
CH76434A
(en )
1918-05-16
Process for the heat treatment of composite bodies
CH77220A
(en )
1918-03-16
Method of making briquettes
CH78380A
(en )
1918-11-16
Process for the preparation of hydrocodeine
CH76779A
(en )
1918-02-01
Process for the production of pressed briquettes
CH73574A
(en )
1916-10-16
Process for the production of oxygen
CH81317A
(en )
1919-06-02
Process for the production of leather
CH80422A
(en )
1919-03-01
Process for the production of metal bodies
CH77097A
(en )
1918-03-01
Method of saving fuel
CH78275A
(en )
1919-01-02
Process for the preparation of acetaldehyde
AT94142B
(en )
1923-09-10
Process for the production of flares and cartridges.
CH76149A
(en )
1917-11-01
Process for the preparation of 6-oxy-2-phenylpyridine-5-carboxylic acid (2-phenylpyridone-5-carboxylic acid)
CH76121A
(en )
1917-11-01
Process for hardening bodies of revolution
CH75897A
(en )
1917-10-01
Process for the production of drive belts
CH77932A
(en )
1918-06-17
Process for the production of calcium cyanamide
CH77919A
(en )
1918-06-01
Process for the production of footwear running parts
CH75029A
(en )
1917-05-16
Method of making briquettes