FR682123A
(en )
1930-05-23
Electrical contact device, especially for low current
FR613413A
(en )
1926-11-17
Electric arc breaking device
CH131689A
(en )
1929-02-28
Current supply device for electric furnace electrode.
FR619557A
(en )
1927-04-05
Device for interrupting an electric current
FR722474A
(en )
1932-03-17
Device for the treatment of organisms by electric current
FR571990A
(en )
1924-05-27
Electric heater for carburetors
FR579341A
(en )
1924-10-14
Device for electric heating body
FR626445A
(en )
1927-09-06
Emissive electrode device for the electrical treatment of gases
FR661583A
(en )
1929-07-26
Protection device for electrical current distribution installations
FR626224A
(en )
1927-09-01
Device for the distribution of electric current
FR650532A
(en )
1929-01-10
Ignition current distributor for electric ignition devices
FR30770E
(en )
1926-08-23
Device for the direct current supply of electric arc welding stations
FR562712A
(en )
1923-11-17
Electric device
FR571492A
(en )
1924-05-17
Winding device for conducting wires for electric heating elements
FR562230A
(en )
1923-11-07
Electric device for heating the wounded
FR28521E
(en )
1925-03-10
Electric heater for carburetors
FR632296A
(en )
1928-01-06
Electric current converter device
FR28820E
(en )
1925-04-08
Electric heater for carburetors
FR33559E
(en )
1928-11-28
Electric current distributor and inverter for ringing bells on the fly
FR641108A
(en )
1928-07-28
Electric bell device applicable on alternating current or direct current
FR636867A
(en )
1928-04-18
Device for the rapid control of the electrical equipment of vehicles
FR590985A
(en )
1925-06-26
Electric current distributor and inverter for ringing bells on the fly
FR568927A
(en )
1924-04-03
Automatic regulation device for electric furnaces with induced current
FR653280A
(en )
1929-03-19
Rocker switch device for electrical contact
FR31185E
(en )
1927-01-26
Electric current distributor and inverter for ringing bells on the fly