CH67686A
(en )
1915-01-02
Device for activating the alarm bell on vehicles that can be driven by hand
CH72284A
(en )
1916-05-01
Device for estimating the distance from flying machines
CH77556A
(en )
1918-05-01
Device for illustrating the elementary arithmetic operations
CH73349A
(en )
1916-09-16
Alarm device on automobiles
CH70639A
(en )
1915-10-16
Device on typewriters
DK23158C
(en )
1918-06-10
Device by Sirens and the like.
CH68066A
(en )
1915-02-01
Alarm device
CH72889A
(en )
1916-12-01
Device for monitoring due dates
CH73185A
(en )
1916-09-01
Device on canning containers to facilitate opening the same
CH69203A
(en )
1915-06-01
Device for triggering speaking machines on speaking clocks, alarm clocks with speaking mechanism and the like
CH70919A
(en )
1915-11-01
Device on Ferrari meters to improve the error curve
CH69011A
(en )
1915-05-01
Device on guns for testing the horizontal wheelbase
DK24969C
(en )
1919-09-08
Alarm device.
DK20860C
(en )
1915-12-27
Signal apparatus for automobiles and the like.
ES64679A3
(en )
1917-07-01
An acoustic warning device.
DK26097C
(en )
1920-06-07
Alarm device.
CH71066A
(en )
1917-08-01
Lashing device on guns
CH72362A
(en )
1916-05-01
Device for attaching glass poles
CH75099A
(en )
1917-06-01
Cooling device
FR474316A
(en )
1915-02-17
Tachometer device
CH59468A
(en )
1913-05-16
Protective device to prevent accidents on circular saws
FR476786A
(en )
1915-08-31
Warning device
CH67821A
(en )
1915-01-16
Signaling device
CH70540A
(en )
1915-10-01
Signaling device
CH72184A
(en )
1916-09-16
Device for forming loopholes