AT168322B
(en )
1951-05-25
Sockets for tubular lamps, in particular fluorescent tubes
AT173510B
(en )
1952-12-27
Ballast for gas discharge tubes, in particular fluorescent tubes
AT173748B
(en )
1953-01-26
Lighting fixtures for fluorescent tubes
CH305877A
(en )
1955-03-15
Tubular discharge lamp.
CH305556A
(en )
1955-02-28
Luminaire for gas discharge lamps.
AT168008B
(en )
1951-04-10
Ignition device for ion discharge tubes, in particular for fluorescent lamps
AT173183B
(en )
1952-11-25
Ignition device for fluorescent tubes
AT191024B
(en )
1957-07-25
Sockets for gas discharge tubes, in particular for fluorescent tubes
AT182785B
(en )
1955-08-10
Cooling device for glass reflectors, especially for arc lamps
AT173769B
(en )
1953-01-26
Holders for heating filaments, in particular for discharge tubes
AT172003B
(en )
1952-07-25
Low pressure gas discharge lamp
AT174660B
(en )
1953-04-25
Discharge tube
AT171644B
(en )
1952-06-25
Gas discharge lamp
CH285287A
(en )
1952-08-31
Socket for fluorescent tubes.
AT195524B
(en )
1958-02-10
Ballast for fluorescent tubes
AT180030B
(en )
1954-10-25
Storage for rotary tubes, in particular for rotary tube furnaces
AT176257B
(en )
1953-10-10
Socket for fluorescent tubes
AT196010B
(en )
1958-02-25
Ballast for fluorescent lamps
AT169274B
(en )
1951-10-25
Ballast for fluorescent tubes
AT169984B
(en )
1951-12-27
Low pressure gas discharge lamp
ES34095Y
(en )
1953-09-01
Electrode for fluorescent tubes or lamps
AT188397B
(en )
1957-01-10
Luminaire for gas discharge tubes
AT180992B
(en )
1955-02-10
Reflectors for fluorescent tubes
AT185890B
(en )
1956-06-11
Ignition switch-free operating device for low-pressure arc discharge tubes
ES23275Y
(en )
1951-04-01
Supports for fluorescent tubes.