CH80418A
(en )
1919-03-01
Device on electric trolleys for securing contact interruption
CH82693A
(en )
1919-10-16
Device to prevent flashovers on electrical machines
CH77304A
(en )
1918-04-01
Device on electric smelting furnaces to automatically maintain a constant electric current
CH80763A
(en )
1919-04-01
Alarm device for electric locomotives
CH78229A
(en )
1918-07-01
Device for electrical heating of inevitably moving media
ES68188A1
(en )
1918-12-01
An improved electrical distribution system for electric ovens.
CH81476A
(en )
1919-06-16
Arrangement on electrical master clocks
CH81386A
(en )
1919-06-02
Electric lighting system on locomotives
ES66327A1
(en )
1918-03-01
Improvements in verification switches for electrical measuring devices.
DK23817C
(en )
1918-12-02
Device for electrically powered Sirens.
CH81055A
(en )
1919-05-01
Electric alarm device for bed-wetting
ES66170A2
(en )
1918-02-16
An electrical voltage safety device.
DK26883C
(en )
1920-11-08
Device for electrical line switches.
CH79673A
(en )
1919-05-01
Electrical measuring device
DK26207C
(en )
1920-06-28
Device by electric commutators.
FR489341A
(en )
1919-01-22
Electrical distribution system for generators
CH79717A
(en )
1919-08-01
Electric evaporation system
DK26222C
(en )
1920-07-05
Device for electric drills.
ES68046A1
(en )
1918-11-16
Conveniently simplified electrical measuring devices.
DK27431C
(en )
1921-04-11
Device for electric Automobiles.
CH78596A
(en )
1918-08-01
Safety device for electric heaters
DK23805C
(en )
1918-12-02
Device for electric time current shutters.
CH85945A
(en )
1920-07-16
Device for operating an electrical rotary switch remotely.
FI7020A
(en )
1918-08-07
Electric siren
DK30210C
(en )
1922-09-11
Electric Discharge Device.