CH40932A
(en )
1908-09-01
Electric light bulb with U-shaped bent, supported metal threads
CH40695A
(en )
1908-08-17
Electric light bulb with supported metal filaments
CH40112A
(en )
1908-06-01
Electric light bulb with several metal filament brackets
CH48925A
(en )
1910-12-16
Electric light bulb with supported metal threads
CH37294A
(en )
1907-05-31
Electric light bulb with metal filaments
DK9336C
(en )
1907-02-25
Metal filament for electric incandescent lamps.
CH36661A
(en )
1907-02-15
Electric light bulb with metal filaments held by a spring
CH41060A
(en )
1908-09-16
Metal filament light bulb
CH44179A
(en )
1909-07-16
Metal filament light bulb
DK10559C
(en )
1908-02-24
Electric Incandescent Lamp with Supported Metal Incandescent Wire.
CH37527A
(en )
1907-06-15
Electric light bulb with a metallic filament
DK9371C
(en )
1907-03-04
Procedure for the manufacture of metal filament for electric filament lamps.
DK9282C
(en )
1907-02-04
Procedure for the manufacture of filament light for electric filament lamps.
CH46903A
(en )
1910-05-02
Electric metal filament light bulb with elastic support for the filament
DK10200C
(en )
1907-11-11
Spring support for metal incandescent wire in electric incandescent lamps.
CH41677A
(en )
1908-11-16
Incandescent lamp with hanging, bow-shaped metal filaments
CH44314A
(en )
1909-08-02
Incandescent lamp with hanging, bow-shaped metal filaments
CH38864A
(en )
1908-01-02
Electric arc lamp
DK9785C
(en )
1907-07-08
Self-regulating electric Arc lamp with Incandescent.
DK10608C
(en )
1908-03-09
Electric incandescent lamp with U- or V-shaped, supported metal wire.
ES44453A2
(en )
1909-03-16
An incandescent electric lamp with elastically suspended metal filaments.
CH37526A
(en )
1907-06-15
Electric light bulb
ES41043A1
(en )
1907-07-16
Improvements in incandescent electric lamps.
FR387420A
(en )
1908-07-09
Improvements to electrical installations with metal filament lamps
DK12551C
(en )
1909-09-27
Procedure for the manufacture of metal wire hangers for electric incandescent lamps.