FR543794A
(en )
1922-09-08
Cooling device for electrical machines
AT96059B
(en )
1924-02-25
Device for receiving electrical vibrations by means of vacuum tubes.
CH95438A
(en )
1922-07-01
Method and device for emitting undamped electrical oscillations by means of electrical vacuum tubes.
GB121620A
(en )
1918-12-10
Vacuum Testing Apparatus.
DK24985C
(en )
1919-09-08
Device by Rotors for electric Turbo Generators.
DK22370C
(en )
1917-08-20
Device by Gas Generators.
DK33058C
(en )
1924-04-07
Device for Direction Receiving Electric Waves.
FR519778A
(en )
1921-06-15
Improvements to supports or mounts for electrical devices
FR493514A
(en )
1919-08-12
Improvements to manifolds for dynamo electric machines
FR489341A
(en )
1919-01-22
Electrical distribution system for generators
DK23851C
(en )
1918-12-09
Device by Clamp Boxes for Electricity Meters.
FR498854A
(en )
1920-01-24
Insulating tube for electrical conduits
CH76831A
(en )
1918-07-01
Clamping device for lead wires
DK25878C
(en )
1920-04-26
Device by Generators.
DK25819C
(en )
1920-04-12
Device by Gas Generators.
DK27157C
(en )
1921-02-14
Device by DC Generators.
DK26222C
(en )
1920-07-05
Device for electric drills.
FR494559A
(en )
1919-09-12
Force limiting reactance coils
CH80742A
(en )
1919-08-16
Overheating protection for electrical heat generating apparatus
DK23270C
(en )
1918-07-15
Device for Match Machines
DK26767C
(en )
1920-10-18
Device by arc generators.
CH76984A
(en )
1918-02-16
Device for cooling the collectors of electrical machines attached by means of shrink rings
AT87449B
(en )
1922-02-25
Protective device for electric power generators.
DK32497C
(en )
1923-11-12
Control device for Vibration motors.
DK26878C
(en )
1920-11-08
Submarine Electric Machine.