CH35030A
(en )
1906-06-30
Electric filament for arc light with incandescent mantle
ES36774A2
(en )
1905-10-16
A new electric incandescent lamp.
FR372666A
(en )
1907-04-13
Filaments of incandescent electric lamps
CH37527A
(en )
1907-06-15
Electric light bulb with a metallic filament
FR371028A
(en )
1907-02-25
Interchangeable filament incandescent electric lamp
FR383131A
(en )
1908-02-25
Electric incandescent lamps with variable lighting power
CH37294A
(en )
1907-05-31
Electric light bulb with metal filaments
CH37292A
(en )
1907-05-15
Filament for incandescent electric lamp
CH38084A
(en )
1907-08-31
Filament for incandescent electric lamp
DK7391C
(en )
1905-03-13
Electric Arc Lamp.
FR365718A
(en )
1906-09-15
Metal filament incandescent electric lamp
AU481205B
(en )
1906-07-03
An improved electric incandescent lamp
CH30394A
(en )
1904-12-15
Incandescent lamp with metal filaments
CH33507A
(en )
1905-12-15
Electric vapor arc lamp
FR355407A
(en )
1905-10-31
Incandescent electric lamp base
CH35993A
(en )
1906-11-15
Electric candle lamp
CH36562A
(en )
1907-01-31
Raw filament for electric light bulbs
CH43540A
(en )
1909-05-17
Electric arc lamp for indirect lighting
FR359058A
(en )
1906-03-15
Incandescent electric lamp with metallic filaments
ES33445A1
(en )
1904-03-16
A new electric incandescent lamp.
CH40695A
(en )
1908-08-17
Electric light bulb with supported metal filaments
DK9785C
(en )
1907-07-08
Self-regulating electric Arc lamp with Incandescent.
DK7302C
(en )
1905-02-20
Electric Incandescent Light Bulb with Second Class Conductors.
FR360955A
(en )
1906-05-09
Incandescent electric lamp
CH32916A
(en )
1905-09-30
Arc lamp