CH278760A
(en )
1951-10-31
Glow electrode.
DK73424C
(en )
1951-11-26
System with an electric discharge lamp.
DK77314C
(en )
1954-03-29
Auxiliary discharge pipes for ignition of electric discharge pipes, preferably with direct current supply.
CH258444A
(en )
1948-11-30
Gas discharge lamp.
CH241775A
(en )
1946-03-31
Electric discharge tube.
DK83050C
(en )
1957-06-24
Cathode body for electric discharge pipes.
DK84693C
(en )
1958-04-08
Cathode body for electric discharge pipes.
DK78724C
(en )
1955-01-10
Electrical ballast for discharge pipes.
DK68172C
(en )
1948-12-20
Glow discharge tube for voltage stabilization.
DK80948C
(en )
1956-05-07
Process for the manufacture of electric discharge pipes.
DK72296C
(en )
1951-03-19
Method for manufacturing an electric discharge lamp.
DK68846C
(en )
1949-04-04
Gaseous discharge tube for regulating electrical machines.
DK70643C
(en )
1950-02-20
Base with relay means for electric discharge pipes.
DK68726C
(en )
1949-03-14
Indirectly heated cathode for electric discharge pipes.
DK80525C
(en )
1956-02-13
Low pressure arc discharge pipe for direct current supply.
DK71159C
(en )
1950-06-26
Gas-filled, electric high-pressure discharge lamp with high power for direct current operation.
DK69075C
(en )
1949-05-02
Method for introducing mercury into electric discharge containers.
DK69799C
(en )
1949-08-29
Electric discharge tube with ignition electrode.
DK70367C
(en )
1949-12-19
System with an electric discharge lamp.
ES13976Y
(en )
1947-05-16
Electrode for cold cathode.
DK69267C
(en )
1949-05-23
Band-shaped matches.
DK79202C
(en )
1955-05-02
Fastening device for indirectly heated cathodes in electric discharge pipes.
DK65489C
(en )
1947-08-04
Shade for electric Lamps.
DK71862C
(en )
1950-12-18
Electrode for electric discharge tubes.
DK70356C
(en )
1949-12-19
Method for making ignition briquettes.