CH36560A
(en )
1907-01-31
Electric light bulb with a carbon filament that has a thin metallic coating
CH37527A
(en )
1907-06-15
Electric light bulb with a metallic filament
CH37294A
(en )
1907-05-31
Electric light bulb with metal filaments
CH36661A
(en )
1907-02-15
Electric light bulb with metal filaments held by a spring
ES43285A1
(en )
1908-07-01
A metallic filament for electric incandescent lamps with its manufacturing process.
CH48925A
(en )
1910-12-16
Electric light bulb with supported metal threads
CH40695A
(en )
1908-08-17
Electric light bulb with supported metal filaments
CA125799A
(en )
1910-05-17
Electric incandescent lamp
CH40112A
(en )
1908-06-01
Electric light bulb with several metal filament brackets
CH46903A
(en )
1910-05-02
Electric metal filament light bulb with elastic support for the filament
ES37994A1
(en )
1906-05-01
A process for the manufacture of especially thin metallic wires for electric incandescent lamps.
ES43717A3
(en )
1908-09-01
Improvements in electric incandescent lamps with metallic filaments.
CH37526A
(en )
1907-06-15
Electric light bulb
ES43963A1
(en )
1908-10-01
An incandescent electric lamp with elastically suspended metal filaments.
ES44453A2
(en )
1909-03-16
An incandescent electric lamp with elastically suspended metal filaments.
GB190620210A
(en )
1907-05-16
Improvements in Supports for Metallic Filaments for Electric Incandescent Lamps.
ES44811A1
(en )
1909-03-01
A procedure for the Manufacture of metallic filaments for electric incandescent lamps.
ES45890A1
(en )
1909-08-16
A procedure for the manufacture of incandescent metallic filaments for electric lamps.
CH54431A
(en )
1912-05-17
Incandescent lamp with metal filaments
DK9336C
(en )
1907-02-25
Metal filament for electric incandescent lamps.
ES42748A1
(en )
1908-04-01
A procedure for the manufacture of filaments for electric incandescent lamps.
CH36562A
(en )
1907-01-31
Raw filament for electric light bulbs
CH47483A
(en )
1910-07-01
Metal filament light bulb with a resiliently attached filament holder
FI3539A
(en )
1908-12-22
Electric light bulbs with a metal light bulb
FR379680A
(en )
1907-11-15
Metallic filament improvements