CH5149A
(en )
1892-11-30
Innovation in electric light bulbs
CH6611A
(en )
1893-09-30
Innovation in electric light bulbs
CH6695A
(en )
1893-10-14
Innovation in electric light bulbs
CH5804A
(en )
1893-03-31
Innovation in light bulbs
CH8485A
(en )
1894-10-31
Innovation in electric light bulbs
ES13588A1
(en )
1892-09-01
Improvements introduced in electric incandescent lamps.
ES14692A1
(en )
1893-08-16
Improvements in electric lamps.
CH5779A
(en )
1893-03-15
Innovation in hanging lamps
ES14684A1
(en )
1893-08-16
Improvements in incandescent electric lamps.
CH4845A
(en )
1892-08-15
Light holder
ES13857A1
(en )
1892-12-01
Improvements made to the supports applied to incandescent electric lamps.
CH4557A
(en )
1892-06-30
Innovation in kerosene lamps
ES14074A1
(en )
1893-02-01
An incandescent electric lamp with replacement incandescent wires.
CH4844A
(en )
1892-08-15
Mended light bulb
CH5836A
(en )
1893-04-29
Innovation in portable lamp stands for electrical room lighting
ES12910A1
(en )
1892-03-01
Improvements in electric railways.
CH5446A
(en )
1892-12-31
Improved incandescent lamp
CH5435A
(en )
1892-12-31
Improvement on incandescent lamps
ES15640A1
(en )
1894-05-01
Improvements introduced in incandescent electric lamps.
ES13611A1
(en )
1892-09-01
Improvements in electric generators.
CH4128A
(en )
1892-03-15
Innovation in electrical capacitors
ES14093A1
(en )
1893-02-01
An improvement in alcohol lamps.
CH6073A
(en )
1893-06-30
Reflector on arc light lamps
CH4818A
(en )
1892-09-30
Regenerative lamp with electric ignition device
ES12779A1
(en )
1892-02-01
Improvements in electric trams.