NL545C
(en )
1915-03-01
Process for manufacturing paint finishes
NL1201C
(en )
1916-04-01
Method for evaporating liquids
NL358C
(en )
1914-10-01
Process for preparing erythrene
NL647C
(en )
1915-05-01
Process for cold drawing very hard metals
NL343C
(en )
1914-10-01
Process for preparing solid fumigants
NL1755C
(en )
1917-01-02
Method for drying liquids
NL4550C
(en )
1920-01-15
METHOD FOR PREPARING PIGMENTS
NL1658C
(en )
1916-11-01
Method for preparing margarine
NL1713C
(en )
1916-11-15
Method for hydrogenating unsaturated substances
NL1641C
(en )
1916-11-15
Method for manufacturing peat-coal briquettes
NL661C
(en )
1915-05-15
Method for manufacturing synthetic wires
NL769C
(en )
1915-09-15
Method for the mechanical production of paper folding trays
NL814C
(en )
1915-09-15
Process for hydrogenating organic compounds
NL472C
(en )
1914-12-15
Method for mattifying enamel
NL387C
(en )
1914-10-15
Machine for the production of artificial slate
NL245C
(en )
1914-06-15
Method for the synthetic preparation of tannins
NL1674C
(en )
1917-05-01
Method for making soap
NL459C
(en )
1914-12-01
Process for the preparation of quinzarin
NL1746C
(en )
1917-01-02
Method for unlocking minerals
NL978C
(en )
1916-01-03
Process for the manufacture of rib-shaped corrugated metal sheet
NL666C
(en )
1915-05-15
Method for preparing disazo dyes
NL539C
(en )
1915-02-15
Method for making impact axes
NL742C
(en )
1915-07-01
Improved process for purifying liquid hydrocarbons
NL397C
(en )
1914-11-02
Trolley for the transport of curved glass plates
NL1547C
(en )
1916-10-02
Method for manufacturing heating bodies for central heating or the like