NL668C
(en )
1913-06-01
Improvement to a molding stone for drying stone building
NL706C
(en )
1916-12-01
Improvement to a machine for the manufacture of solid and hollow bodies of cement, sand, chamotte and the like
NL1237C
(en )
1916-05-01
Improvement to a nut lock
CH73980A
(en )
1916-12-16
Roof tiles
NL782C
(en )
1916-12-15
Process for manufacturing a material from waste wood
FR446435A
(en )
1912-12-05
Floor tile
NL1563C
(en )
1916-11-01
Improvement to a device for re-grinding
NL614C
(en )
1915-04-15
Improvement to a button sewing tool
NL3834C
(en )
1919-10-01
Improvement to a device for cleaning cables.
NL642C
(en )
1915-05-01
Improvement to a machine for making wires and rods
CH60705A
(en )
1913-08-01
Roof tiles
NL148C
(en )
1914-03-16
Improvement to a drying device
NL358C
(en )
1914-10-01
Process for preparing erythrene
NL670C
(en )
1915-05-15
Improvement to a device for finishing curved stereotyping plates
NL387C
(en )
1914-10-15
Machine for the production of artificial slate
NL545C
(en )
1915-03-01
Process for manufacturing paint finishes
NL1755C
(en )
1917-01-02
Method for drying liquids
NL620C
(en )
1915-04-01
Method of preparing hydraulic cement
NL408C
(en )
1914-11-16
Improvement to a grind
NL164C
(en )
1914-04-01
Improvement to a capsular blower
NL827C
(en )
1915-10-01
Improvement to incinerators
NL343C
(en )
1914-10-01
Process for preparing solid fumigants
NL1047C
(en )
1916-01-15
Improvement to a machine for manufacturing helically corrugated pipes
NL494C
(en )
1915-01-15
Verbetering aan verende hinge voor wielbanden
NL1227C
(en )
1916-04-15
Improvement to a pneumatic device for operating signals, etc