US820113A
(en )
1906-05-08
Water-purifier.
BE423786A
(sr )
US3740507A
(en )
1973-06-19
Vacuum switch with magnetically controllable arc
US4606892A
(en )
1986-08-19
Ozone generator of stack-type design, employing round plate-electrodes
US4002867A
(en )
1977-01-11
Vacuum-type circuit interrupters with condensing shield at a fixed potential relative to the contacts
US2542639A
(en )
1951-02-20
Electrode structure for electric discharge devices
US5633777A
(en )
1997-05-27
Gas-filled, three-electrode overvoltage surge arrester for large switching capacities
US1598877A
(en )
1926-09-07
Electrical switch
US1164082A
(en )
1915-12-14
Electric ignition device.
US2213209A
(en )
1940-09-03
Electrolytic condenser
US4504711A
(en )
1985-03-12
Vacuum switching tube having magnetic field electrodes
US3287531A
(en )
1966-11-22
Terminal bushing having impedance means associated therewith
US3442788A
(en )
1969-05-06
Ozone generator
US1944190A
(en )
1934-01-23
Vacuum tube
US1934475A
(en )
1933-11-07
Electric capacitor
BE393058A
(sr )
US1984469A
(en )
1934-12-18
Electric cathode glow lamp
US2096236A
(en )
1937-10-19
Electrical discharge device
RU2002111696A
(ru )
2003-11-20
Электродный нагреватель воды (варианты)
US3089053A
(en )
1963-05-07
Mercury discharge tube
US1603417A
(en )
1926-10-19
Electric gas lamp with glow discharge
US2065152A
(en )
1936-12-22
Voltage limiting device
US1316967A
(en )
1919-09-23
Gaseous-conduction lamp
US3727092A
(en )
1973-04-10
High power vacuum fuse apparatus
US2419236A
(en )
1947-04-22
Electrical gaseous discharge device having constant starting characteristics