NL292C
(en )
1914-08-01
Improvement of a method of manufacturing prostheses
FR465377A
(en )
1914-04-15
Valve
NL179C
(en )
1914-04-15
Method of manufacturing artificial stone
NL402C
(en )
1914-11-02
Improvement of a method for producing charcoal
NL661C
(en )
1915-05-15
Method for manufacturing synthetic wires
NL1820C
(en )
1917-03-01
Method of manufacturing artificial lithographic stones
NL1592C
(en )
1916-10-02
Method of manufacturing artificial stone
NL942C
(en )
1915-11-15
Machine for manufacturing metal mesh
NL1567C
(en )
1916-10-02
Method of manufacturing salt bodies
NL89C
(en )
1914-01-02
Improvement of a nut retainer
NL1169C
(en )
1917-01-15
Method for manufacturing a paper tissue
NL620C
(en )
1915-04-01
Method of preparing hydraulic cement
NL1641C
(en )
1916-11-15
Method for manufacturing peat-coal briquettes
NL1125C
(en )
1916-04-01
Improvement of a method of vitrification
NL546C
(en )
1915-12-15
Improvement of a method for the preparation of whitewash
NL1686C
(en )
1917-01-02
Method for producing easily soluble cocoa powder without the use of chemicals
NL1434C
(en )
1916-07-15
Method of manufacturing a concrete mortar
NL819C
(en )
1915-09-15
Method for making concrete objects airtight
NL1140C
(en )
1916-02-15
Method of manufacturing artificial hard stone
NL1220C
(en )
1916-05-15
Improvement of a method for the production of securities
CH58879A
(en )
1913-04-01
mattress
CH61322A
(en )
1913-09-16
Balloon valve
FR17040E
(en )
1913-06-03
Mechanical stringer
FR443733A
(en )
1912-10-01
Mechanical stringer
CH59227A
(en )
1913-05-02
Pressure reducer