CH325537A
(en )
1957-11-15
Device for electric arc welding using auxiliary magnetic fields and method for operating the device
CH319739A
(en )
1957-02-28
Arrangement for interrupting DC and AC circuits
CH337961A
(en )
1959-04-30
Apparatus for high frequency electrical surgery
CH302707A
(en )
1954-10-31
Method for changing the electrical properties of a semiconductor body in places.
CH291626A
(en )
1953-06-30
Process for liquefying gases and equipment for carrying out this process.
CH318604A
(en )
1957-01-15
Method and device for switching electrical currents
AT184032B
(en )
1955-12-10
Method and arrangement for electric arc welding
CH338881A
(en )
1959-06-15
Method and tool for connecting end pieces of electrical conductors
CH286549A
(en )
1952-10-31
Method and arrangement for determining electrical conductivity.
CH320966A
(en )
1957-04-15
Arrangement for electrical sealing between moving, shielding parts and shield walls
AT177635B
(en )
1954-02-25
Method and device for arc welding
AT178206B
(en )
1954-04-26
Method for operating electric furnaces and arrangement for carrying out the method
FI26707A
(en )
1953-12-10
Electric welding method
AT183639B
(en )
1955-10-25
Method and device for sterilizing food
AT189891B
(en )
1957-05-10
Method of electric arc welding
AT192113B
(en )
1957-09-25
Welding method and device for carrying out the same
AT180796B
(en )
1955-01-10
Arrangement for regulating the advance speed of the electrodes in automatic electric arc welding machines
AT186851B
(en )
1956-09-25
Welding head and welding process for high frequency electrical welding
AT170290B
(en )
1952-02-11
Electrode for underwater cutting and underwater welding
AT169338B
(en )
1951-11-10
Covered welding rod for electric arc welding
AT172640B
(en )
1952-09-25
Device for dedusting gases
AT175125B
(en )
1953-06-10
Process and electrode for oxyelectric cutting
AT170325B
(en )
1952-02-11
Process for electric arc welding of thin sheets
AT185570B
(en )
1956-05-11
Process and device for continuous welding
CH302303A
(en )
1954-10-15
Method for operating an electric furnace and furnace serving for carrying out the method.