CH614A
(en )
1889-06-06
Innovations in lighting with electric incandescent light
ES9150A1
(en )
1889-03-01
Improvements introduced in electric incandescent lamps connected in series by series.
ES12045A1
(en )
1891-08-01
An automatic lamp for public petroleum lighting in general and an alternative to the electric one.
ES9263A1
(en )
1889-04-16
For improvements in lighting by means of incandescent electric lamps.
CH2530A
(en )
1891-02-14
Innovation in incandescent bodies for electric light bulbs
CH2531A
(en )
1891-02-14
Innovation in incandescent bodies for electric light bulbs
CH2586A
(en )
1891-02-14
Innovation in incandescent bodies for electric light bulbs
CH2587A
(en )
1891-02-14
Innovation in incandescent bodies for electric light bulbs
CH2588A
(en )
1891-02-14
Innovation in incandescent bodies for electric light bulbs
CH450A
(en )
1889-03-25
Electric light bulb for series connection
CH507A
(en )
1889-04-02
Innovations in electrical lighting systems
CH1518A
(en )
1890-06-14
Candlestick with automatic candle clamp and cleaning bulb
CH74A
(en )
1889-01-09
Innovations to hoists
ES11599A1
(en )
1891-02-01
Improvements in oven lighting.
CH1089A
(en )
1889-09-11
Innovation in regenerative lamps with downward burning flame
CH377A
(en )
1889-03-19
Innovation in the attachment of the carbon filaments to the platinum wire in incandescent lamps
CH2537A
(en )
1891-02-14
Innovation in incandescent bodies for electric vacuum light bulbs
FR580422A
(en )
1924-11-06
Electric lamp having a light source adjusted in position relative to the base
CH1746A
(en )
1890-04-30
Device for changing the light intensity of arc lamps connected in series
CH214A
(en )
1889-02-13
Improvements in incandescent lamp holders
JP1793565S
(en )
2025-03-14
Lighting fixtures
CH433A
(en )
1889-03-25
Holders for electric light bulbs
ES9662A1
(en )
1889-08-01
Improvements in the gas manufacturing process for lighting and heating.
ES4465A1
(en )
1885-05-07
Improvements in incandescent electric lamps.
FR603563A
(en )
1926-04-19
Multi-filament electric incandescent lamp with variable lighting intensity