CH213029A
(en )
1941-01-15
Method and device for spinning rayon.
CH167638A
(en )
1934-02-28
Method and arrangement for operating high-frequency electric furnaces.
CH210447A
(en )
1940-07-15
Procedure and arrangement for frequency division.
CH236475A
(en )
1945-02-15
Method and device for regulating and / or interrupting electrical currents.
CH208635A
(en )
1940-02-15
Method and arrangement for operating high-voltage discharge tubes.
CH206537A
(en )
1939-08-15
Method for operating vacuum heating furnaces, in particular annealing and melting furnaces.
AT141480B
(en )
1935-04-25
Coreless induction furnace for operation with three-phase current and method for operating the same.
CH219028A
(en )
1942-01-15
Arrangement for the operation of television tubes.
CH167609A
(en )
1934-02-28
Method for operating compression refrigeration machines.
CH161662A
(en )
1933-05-15
Method for sealing the shaft bushing of gas-cooled electrical machines.
AT180635B
(en )
1954-12-27
Method and device for generating electrical high-frequency oscillations
AT140833B
(en )
1935-02-25
Process for making crucibles and furnace stoves
AT178206B
(en )
1954-04-26
Method for operating electric furnaces and arrangement for carrying out the method
AT157986B
(en )
1940-02-26
Method and device for making wafers.
AT157978B
(en )
1940-02-26
Method and device for drying.
CH172134A
(en )
1934-09-30
Device for preheating blowtorches and the like.
CH225436A
(en )
1943-01-31
Procedure for turning off alternating current.
AT172611B
(en )
1952-09-25
Method for operating electric ovens with permanent electrodes
AT168578B
(en )
1951-06-25
Method for operating electric ovens with permanent electrodes
CH302303A
(en )
1954-10-15
Method for operating an electric furnace and furnace serving for carrying out the method.
CH138432A
(en )
1930-02-28
Method of operating high frequency furnaces.
CH160257A
(en )
1933-02-28
Method for operating composite gas turbines.
AT155584B
(en )
1939-02-25
Arrangement for the operation of converters.
CH177664A
(en )
1935-06-15
Apparatus for drilling and milling.
AT140673B
(en )
1935-02-25
Process for applying luminous substances in electrical discharge devices.