CH259587A
(en )
1949-01-31
Electric heating device, in particular for an indirectly heated cathode.
CH220441A
(en )
1942-03-31
Device for triggering processes depending on electrical parameters.
CH85235A
(en )
1920-10-01
Device for drawing circles.
CH79481A
(en )
1918-12-02
Device for holding cords, in particular shoe nests
CH80919A
(en )
1919-04-16
Device for holding sheaves
AT96142B
(en )
1924-02-25
Device for heating grain.
DK35071C
(en )
1925-09-28
Electrode holder for electric resistance furnaces.
CA216296A
(en )
1922-02-28
Device for gripping the work in drilling
ES71862A1
(en )
1920-03-16
Improvements in electric heaters.
CH67577A
(en )
1914-12-16
Device for heating soles
CH77504A
(en )
1918-04-16
Device for attaching objects to walls etc.
AT91427B
(en )
1923-02-26
Method and device for electrical welding.
CA218614A
(en )
1922-05-16
Tool clamp
ES79409A1
(en )
1921-12-01
Improvements in portable electrically operated tools.
CH80023A
(en )
1919-02-01
Method and device for the electrical heating of ovens, in particular rotary kilns
DK41528C
(en )
1930-01-27
Electric Welding Apparatus.
CH101007A
(en )
1923-09-01
Device for processing workpieces by turning, milling and grinding.
CH87210A
(en )
1920-11-16
Device for sealing letters, packages and the like.
ES69344A1
(en )
1919-04-16
Improvements in heating devices.
ES85764A1
(en )
1923-07-16
Clamping chuck.
ES77351A1
(en )
1921-05-01
Improvements in clamps or clamping devices for electrical conductors.
ES73441A1
(en )
1920-07-16
Improvements in electrical rectifiers with the corresponding methods for their operation.
ES73397A1
(en )
1920-07-08
Improvements in sealing or welding machines for electric lamps, ampoules and the like.
AT91351B
(en )
1923-02-26
Device for sharpening scythes u. like
CH83351A
(en )
1919-12-01
Device on the jaws of filing butts, vices etc.