DK26858C
(en )
1920-11-08
Electric Incandescent Lamp with Spiral or Screwed Metal Incandescent Wire.
DK18373C
(en )
1914-01-19
Electric Metal Wire Lamp.
DK14373C
(en )
1911-03-20
Electric metal wire incandescent lamp with resilient suspension of the metal wires.
ES56520A1
(en )
1913-11-16
Metallic filament electric lamp.
FI5674A
(en )
1914-03-12
Metal wire lamp
CH67669A
(en )
1915-01-02
Metal filament lamp
CH66937A
(en )
1914-10-16
Electric metal wire lamp
DK10559C
(en )
1908-02-24
Electric Incandescent Lamp with Supported Metal Incandescent Wire.
DK21067C
(en )
1916-03-06
Electric Lamp with Glowing Gases.
ES54339A1
(en )
1913-01-01
Improvements in electric incandescent lamps.
GB191310892A
(en )
1914-04-23
Means for Improving the Illuminating Effect of Incandescent Electric Lamps.
FR463159A
(en )
1914-02-16
Metal filament electric lamp
CA3683S
(en )
1914-07-24
Lighting fixture
DK20559C
(en )
1915-09-13
Electric Lamp with luminous Gases.
DK30412C
(en )
1922-10-09
Electric Reading Lamp.
NL188C
(en )
1914-05-01
Electric metal wire bulb
DK13362C
(en )
1910-06-27
Device for electric metal wire lamps with reflector.
ES57614A1
(en )
1914-04-16
Electric lamps with metallic filaments, with reserve facilities.
FR474519A
(en )
1915-02-24
Improvements to incandescent electric lamps
CH60390A
(en )
1913-07-16
Electric metal wire light bulb
ES55761A3
(en )
1913-08-01
An electric incandescent lamp.
DK13087C
(en )
1910-03-21
Metal wire lamps.
ES55068A3
(en )
1913-05-01
Improvements in electric incandescent lamps.
ES50908A1
(en )
1911-10-16
Improvements in the manufacture of incandescent electric lamps.
ES52980A1
(en )
1912-07-16
Improvements in incandescent electric lamps.