DE1326396U
(cs )
US1893730A
(en )
1933-01-10
Lamp
DE399813C
(de )
1924-08-11
Abblendbarer Scheinwerfer
GB487122A
(en )
1938-06-15
Improvements in or relating to electric light fittings
GB450076A
(en )
1936-07-09
Improvements in reflectors
CH185517A
(de )
1936-07-31
Beleuchtungsarmatur.
Chee et al.
1964
On the Photoelectric Effects of the Various Kinds of Light Source influencing to the Starting Characteristics of the Cold Cathode Type Discharge Tube
BARKAN et al.
0
EDITORIAL STAFF LAWRENCE T. POST,. editor
DE1378423U
(cs )
DE1296138U
(cs )
GB345166A
(en )
1931-03-19
Anti-dazzle device for vehicle head-lamps
DE1305911U
(cs )
GB256783A
(en )
1926-08-19
Improvements in or relating to imitation fires
GB566826A
(en )
1945-01-16
Improvements in or relating to lamp standards and the like
GB297065A
(en )
1928-09-14
Improvements in advertising signs
DE1913179U
(de )
1965-04-01
Beleuchtungsroehre fuer fotografische aufnahmezwecke.
DE6807768U
(de )
1969-04-10
Leuchtstoff-gluehlampe mit normaledison 28-fassung
GB264435A
(en )
1927-01-20
Improvements in or relating to rear-lights for cycles
GB310547A
(en )
1930-05-08
Improvements in or relating to vehicular and other lamps
DE1507938U
(cs )
CH125086A
(de )
1928-04-02
Scheinwerfer mit Blendschutz.
DE1697559U
(de )
1955-04-28
Lichtfilter.
GB315336A
(en )
1929-07-11
Improvements in advertising signs
GB415210A
(en )
1934-08-23
Improvements relating to lamp reflectors
DE1325598U
(cs )