CH81473A
(en )
1919-09-01
Key for winding, setting the time etc. of watch movements
FR498120A
(en )
1919-12-30
Straight escapement for all watch movements
CH82080A
(en )
1919-09-01
Dial for timepieces, compasses, manometers, kinemometers etc.
FR563087A
(en )
1923-11-26
Winding and time-setting mechanism known as <positive or pull-tab>, for watches
FR25792E
(en )
1923-05-18
Winding and time-setting mechanism for watch movements
ES70411A3
(en )
1919-09-01
A procedure for the manufacture of "pendantifs".
FR505975A
(en )
1920-08-11
Watch for rings or the like
FR521720A
(en )
1921-07-19
Timepiece key, specially for alarm clocks
FR527887A
(en )
1921-11-03
Pull-down winding and setting mechanism
FR790706A
(en )
1935-11-26
Construction process by <<standard>> elements, elements for the implementation of this process, and structures thus constructed
FR495246A
(en )
1919-10-02
Watch case. "case b"
FR503822A
(en )
1920-06-18
Process for the preparation of concrete for the construction of ships, etc.
CH224692A
(en )
1942-12-15
Process for the purification of metallic manganese.
ES69603A1
(en )
1919-05-16
A procedure for the manufacture of new refractory materials.
FR503920A
(en )
1920-06-21
Hand lantern, for signals
FR530284A
(en )
1921-12-19
Perforating and riveting machine, for the mass production of shod tire casings
FR494969A
(en )
1919-09-25
Door bell, self-winding
FR501547A
(en )
1920-04-16
Watchmaking lathe
DK27725C
(en )
1921-06-06
Procedure for the manufacture of chromium alloys.
FR504361A
(en )
1920-07-02
Alarm clock movement
ES69059A1
(en )
1919-03-16
A new sugar case called "Quick".
ES69956A1
(en )
1919-07-16
A block of cement.
CH71714A
(en )
1916-02-01
Time-setting mechanism for watches
CH75888A
(en )
1917-10-01
Dial for timepieces, compasses, etc.
CH84734A
(en )
1920-08-16
Process for the manufacture of an insecticide.