AT23440B
(en )
1906-03-10
Electric light bulb with several threads to be used one after the other.
CH48925A
(en )
1910-12-16
Electric light bulb with supported metal threads
CH37294A
(en )
1907-05-31
Electric light bulb with metal filaments
CH31375A
(en )
1905-03-31
Electric light bulb
ES33775A1
(en )
1904-05-16
Improvements in electric incandescent lamps.
CH31976A
(en )
1905-05-31
Electric light bulb
CH31501A
(en )
1905-04-15
Bulb socket with off switch
CH37526A
(en )
1907-06-15
Electric light bulb
CH40695A
(en )
1908-08-17
Electric light bulb with supported metal filaments
ES34189A3
(en )
1904-07-16
Improvements in the manufacture of incandescent lamps.
CH30260A
(en )
1904-11-30
Electric incandescent lamp
ES62115A1
(en )
1916-05-16
A procedure, with its corresponding devices, so that with the same electric light bulb, to achieve different intensities as appropriate.
ES62087A1
(en )
1916-05-16
An arrangement in incandescent electric lamps that allows the lamp holder to be dispensed with.
ES39482A1
(en )
1906-12-16
Improvements in incandescent electric lamps.
CH36859A
(en )
1907-03-15
Electric pocket light bulb
ES39723A1
(en )
1907-02-01
You improve the filaments of incandescent electric lamps.
ES43717A3
(en )
1908-09-01
Improvements in electric incandescent lamps with metallic filaments.
CH37527A
(en )
1907-06-15
Electric light bulb with a metallic filament
DK12598C
(en )
1909-10-11
Procedure for annealing kit knots in electric incandescent lamps.
GB190807300A
(en )
1908-10-15
Improvements in or connected with Flash Light Signalling Lamps.
CH40932A
(en )
1908-09-01
Electric light bulb with U-shaped bent, supported metal threads
ES36828A1
(en )
1905-11-01
An electric incandescent lamp with luminous bodies connected to the ends of the metal supports.
DK7302C
(en )
1905-02-20
Electric Incandescent Light Bulb with Second Class Conductors.
CH44595A
(en )
1909-09-01
Electric light bulb
ES61809A1
(en )
1916-04-01
Improvements in electric incandescent lamps.