AT96521B
(en )
1924-04-10
Process and apparatus for the production of pure furfural.
AT76380B
(en )
1919-05-10
Process and system for the production of pre-doughs.
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH80901A
(en )
1919-04-16
Process for the production of hollow bodies and hollow bodies produced by this method
CH76103A
(en )
1917-11-01
Method and device for the production of paper bags
CH68991A
(en )
1915-05-17
Process and apparatus for the production of black lead
CH79338A
(en )
1919-03-17
Process and apparatus for the electrolytic production of mercury oxide
CH76405A
(en )
1917-12-17
Process for the manufacture of refractory products
CH75974A
(en )
1917-10-16
Process for the production of silicon carbide
CH75457A
(en )
1916-12-17
Process for the production of stamps and stamps produced by the process
CH75875A
(en )
1917-10-01
Process for the production of potassium persulfate
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH76373A
(en )
1917-12-01
Process for the preparation of glycolyl-p-phenetidide
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH75897A
(en )
1917-10-01
Process for the production of drive belts
CH75552A
(en )
1917-08-16
Process for the production of printing inks
CH71814A
(en )
1916-02-16
Process for the production of inking rollers
CH75980A
(en )
1918-03-16
Process for the production of artificial leather
CH77110A
(en )
1918-08-01
Process for the production of artificial leather
CH77381A
(en )
1918-09-02
Process for the production of artificial leather
CH76805A
(en )
1918-06-17
process for the production of nutrient pulp
AT82867B
(en )
1921-02-25
Process for the production of smokeless and metal-free flares.
AT82868B
(en )
1921-02-25
Process for the production of smokeless and metal-free flares.
AT82869B
(en )
1921-02-25
Process for the production of smokeless and metal-free flares.
AT98665B
(en )
1924-12-10
Process for the production of tanning substances.