CH79406A
(en )
1919-04-01
Device for cooling air and oil transformers
CH79564A
(en )
1919-04-16
Device to improve the cooling of electromagnet and transformer windings
CH72317A
(en )
1916-05-01
Device for cooling transformer oil
CH77306A
(en )
1918-04-01
Device to prevent bedwetting
CH82324A
(en )
1919-09-16
cooler
FR21952E
(en )
1921-04-21
Automatic globe valve
CH80017A
(en )
1919-05-01
Arrangement for fixing transformers in their oil boxes
CH81023A
(en )
1919-05-01
Lubricating device on locomotives
CH80288A
(en )
1919-02-17
Safety device on the oil box of electrical transformers and apparatus
FR493238A
(en )
1919-08-02
Air brake valves
AT91315B
(en )
1923-02-26
Device for cooling and venting the propellant of liquid drives.
CH79563A
(en )
1919-04-16
cooler
FR497010A
(en )
1919-11-22
Carburetor
CH83592A
(en )
1919-12-16
Device for operating gas lamps
CH78960A
(en )
1919-02-17
Method and device for measuring the performance of piston engines
CH80902A
(en )
1919-04-16
Device for facilitating the tying of packages and the like
FR498851A
(en )
1920-01-24
Automatic stabilizer device for airplanes and other air navigation devices
FR500944A
(en )
1920-03-27
Air condenser
DK31616C
(en )
1923-04-30
Device for Cooling and Lubrication of Outboard Engines.
FI7002A
(en )
1918-06-27
Three-phase transformer
SE46391C1
(en )
1920-01-21
Device for martin ovens
CH77599A
(en )
1918-05-01
Device for fastening bushing insulators in oil switch covers
CH75161A
(en )
1917-06-01
Device for the graphic determination of the page size of regular polygons
FR506595A
(en )
1920-08-25
air purifier
FR515806A
(en )
1921-04-07
Air vessel