DK71081C
(en )
1950-06-06
Artificial, inorganic fluorescent material and process for its manufacture.
CH271514A
(en )
1950-10-31
Electric low pressure discharge lamp.
DK76894C
(en )
1953-12-28
Fluorescent material, in particular for electric discharge lamps, and process for its manufacture.
DK79492C
(en )
1955-07-04
Fluorescent material, in particular for electric discharge lamps, and process for its manufacture.
CH279459A
(en )
1951-11-30
Gas and / or vapor-filled electric discharge lamp.
CH301209A
(en )
1954-08-31
Device for igniting several gas or vapor-filled main discharge tubes.
DK77836C
(en )
1954-07-19
Artificial luminescent material for electric discharges and methods for its manufacture.
AT169275B
(en )
1951-10-25
Electric gas discharge lamp, especially in the form of a festoon
AT169756B
(en )
1951-12-27
Electric gas discharge lamp
AU157183B2
(en )
Electric discharge lighting plant, particularly for advertising purposes
DK73317C
(en )
1951-11-05
Insulation material and process for its manufacture.
AT169977B
(en )
1951-12-27
Fluorescent material, preferably for an electric discharge tube
ES23397Y
(en )
1951-04-16
Fluorescent lamp, perfected.
CA469325A
(en )
1950-11-14
Electric glow discharge lamps
CH290128A
(en )
1953-04-15
Electrode for low-pressure electric discharge tubes.
AT175630B
(en )
1953-07-25
Silicate fluorescent material, in particular for electric discharge lamps, and method for its manufacture
CH299657A
(en )
1954-06-30
Receptacle and process for its manufacture.
CA463752A
(en )
1950-03-14
Fluorescent material
ES23974Y
(en )
1951-02-01
New fluorescent lamp.
IE20958L
(en )
1954-03-05
Luminescent discharge lamps
IE19251L
(en )
1951-01-16
Manufacturing electric discharge tubes.
CA469490A
(en )
1950-11-21
High pressure discharge lamps
CA458216A
(en )
1949-07-19
.alpha.-ANILINE-N-D-RIBOFURANOSIDE AND PROCESS FOR THE MANUFACTURE THEREOF
DK76613C
(en )
1953-11-02
Friction joints, in particular for electric lamps.
DK79559C
(en )
1955-07-18
Vapor-filled electric discharge lamp, in particular for photographic purposes.