NL1563C
(en )
1916-11-01
Improvement to a device for re-grinding
NL340C
(en )
1914-10-01
Improvement to a device for burning finely divided fuel
NL1694C
(en )
1916-11-01
Improvement to a spring-loaded ejector
NL3834C
(en )
1919-10-01
Improvement to a device for cleaning cables.
NL1303C
(en )
1916-06-15
Improvement to a device for cutting drill pipes
NL1398C
(en )
1916-07-01
Improvement to a release device for typographical machines
NL670C
(en )
1915-05-15
Improvement to a device for finishing curved stereotyping plates
NL614C
(en )
1915-04-15
Improvement to a button sewing tool
NL642C
(en )
1915-05-01
Improvement to a machine for making wires and rods
NL904C
(en )
1915-11-01
Improvement to a device for preparing paper pulp
NL1362C
(en )
1916-06-15
Improvement to a razor sharpening device
NL342C
(en )
1914-10-01
Improvement to a self-acting lubricator for rails
NL148C
(en )
1914-03-16
Improvement to a drying device
NL408C
(en )
1914-11-16
Improvement to a grind
NL1255C
(en )
1916-05-01
Improvement to a locking device for Maxim system machine guns
NL1568C
(en )
1916-10-02
Improvement to a catch device for self-acting firearms
NL703C
(en )
1915-07-15
Cigarette Machine Control Device
NL1046C
(en )
1916-01-15
Improvement to a device for determining the deviation of boreholes from the vertical
NL1123C
(en )
1916-02-15
Improvement to the printing device for calculators
NL1227C
(en )
1916-04-15
Improvement to a pneumatic device for operating signals, etc
NL827C
(en )
1915-10-01
Improvement to incinerators
NL772C
(en )
1915-08-02
Improvement of a device for lowering lifeboats
NL1028C
(en )
1916-01-15
Improvement to a security device for cash loading
NL248C
(en )
1914-06-15
Improvement to a mousetrap
NL713C
(en )
1915-06-15
Improvement to a pump device