CH6250A
(en )
1893-07-31
Electric light bulb with replacement filaments
CH6362A
(en )
1893-08-15
Electric light bulb with replacement filaments
CH10400A
(en )
1895-12-15
Electric light bulb with replacement filaments
CH7062A
(en )
1894-01-31
Electric filament lamp with multiple filaments
CH7241A
(en )
1894-02-15
Suspension device for electric light bulbs
ES14074A1
(en )
1893-02-01
An incandescent electric lamp with replacement incandescent wires.
CH5668A
(en )
1893-02-15
Two-part holder for electric light bulbs
CH12587A
(en )
1897-01-31
Electric light bulb
CH7063A
(en )
1894-01-31
Lighting system with incandescent lamps with multiple filaments
CH13070A
(en )
1897-04-30
Luminaries for electric light bulbs
CH7166A
(en )
1894-01-31
Electric arc lamp
CH6073A
(en )
1893-06-30
Reflector on arc light lamps
ES14684A1
(en )
1893-08-16
Improvements in incandescent electric lamps.
CH4844A
(en )
1892-08-15
Mended light bulb
CH5446A
(en )
1892-12-31
Improved incandescent lamp
ES13588A1
(en )
1892-09-01
Improvements introduced in electric incandescent lamps.
ES13857A1
(en )
1892-12-01
Improvements made to the supports applied to incandescent electric lamps.
CH37527A
(en )
1907-06-15
Electric light bulb with a metallic filament
CH35030A
(en )
1906-06-30
Electric filament for arc light with incandescent mantle
CH37294A
(en )
1907-05-31
Electric light bulb with metal filaments
CH11583A
(en )
1896-07-31
Suspension device for electric arc light lamps
CH5149A
(en )
1892-11-30
Innovation in electric light bulbs
CH10516A
(en )
1895-12-15
Electric arc lamp
CH6695A
(en )
1893-10-14
Innovation in electric light bulbs
CH6611A
(en )
1893-09-30
Innovation in electric light bulbs