NL1709C
(en )
1917-05-01
Method for preparing reserves
NL1658C
(en )
1916-11-01
Method for preparing margarine
NL358C
(en )
1914-10-01
Process for preparing erythrene
NL414C
(en )
1914-11-02
Process for the preparation of a rubber surrogate
NL326C
(en )
1914-12-15
Hop extraction method
NL1164C
(en )
1916-04-01
Method for the preparation of hexaminoarsenobenzole
NL459C
(en )
1914-12-01
Process for the preparation of quinzarin
NL1258C
(en )
1916-05-01
Method for preparing sulfur-containing dyes
NL661C
(en )
1915-05-15
Method for manufacturing synthetic wires
NL343C
(en )
1914-10-01
Process for preparing solid fumigants
NL1279C
(en )
1917-01-15
Method for the preparation of aluminum nitrure
NL539C
(en )
1915-02-15
Method for making impact axes
NL610C
(en )
1915-04-01
Process for preparing electrolytes for electroplating purposes
NL617C
(en )
1915-04-15
Process for the preparation of bismethylaminotetraminoarsenobenzol
NL1169C
(en )
1917-01-15
Method for manufacturing a paper tissue
NL1713C
(en )
1916-11-15
Method for hydrogenating unsaturated substances
NL4550C
(en )
1920-01-15
METHOD FOR PREPARING PIGMENTS
NL769C
(en )
1915-09-15
Method for the mechanical production of paper folding trays
NL1220C
(en )
1916-05-15
Improvement of a method for the production of securities
NL436C
(en )
1914-11-16
Method for fixing nail folds
NL666C
(en )
1915-05-15
Method for preparing disazo dyes
NL978C
(en )
1916-01-03
Process for the manufacture of rib-shaped corrugated metal sheet
NL1674C
(en )
1917-05-01
Method for making soap
NL1240C
(en )
1916-04-15
Method for preparing a flint-containing caoutchouc mass
NL492C
(en )
1915-01-15
Process for the preparation of white lead