CH38266A
(en )
1907-09-30
Metal support for metal filaments of electric light bulbs
CH37070A
(en )
1907-04-15
Holder for metallic filaments of electric light bulbs
CH36562A
(en )
1907-01-31
Raw filament for electric light bulbs
FR367271A
(en )
1906-10-25
Electric lamp holder
CH37525A
(en )
1907-06-15
Protective cage for electric lamps
CH37526A
(en )
1907-06-15
Electric light bulb
FR362311A
(en )
1906-06-19
Holder for incandescent electric lamps
CH64790A
(en )
1914-05-01
Holder for the filament of electric light bulbs
CH37294A
(en )
1907-05-31
Electric light bulb with metal filaments
CH40114A
(en )
1908-06-01
Support for the filament of metal filament lamps
CH39099A
(en )
1908-02-01
Incandescent bodies for electric lamps
CH39208A
(en )
1908-02-17
Incandescent bodies for electric lamps
CH36859A
(en )
1907-03-15
Electric pocket light bulb
CH38090A
(en )
1907-08-31
Installation for the production of signs by means of incandescent electric lamps
FR414300A
(en )
1910-08-30
Elastic support for filaments of incandescent electric lamps
FR384304A
(en )
1908-04-04
Support for metal filaments of incandescent electric lamps
FR363177A
(en )
1906-07-23
New equipment for electric lamps
FR6519E
(en )
1906-12-17
New equipment for electric lamps
CH37065A
(en )
1907-04-15
Coil for electrical purposes
CH35163A
(en )
1906-07-15
Incandescent lamp holders for advertising purposes
CH35993A
(en )
1906-11-15
Electric candle lamp
CH39971A
(en )
1908-05-16
Suspension device for electric lighting fixtures
DK9048C
(en )
1906-11-19
Procedure for the manufacture of filament lamps for electric filament lamps.
ES39723A1
(en )
1907-02-01
You improve the filaments of incandescent electric lamps.
FR376797A
(en )
1907-08-20
Bayonet caps for incandescent electric lamps