CH433A
(en )
1889-03-25
Holders for electric light bulbs
CH450A
(en )
1889-03-25
Electric light bulb for series connection
CH5668A
(en )
1893-02-15
Two-part holder for electric light bulbs
CH2483A
(en )
1890-11-15
Automatic electrical lighting apparatus for medical purposes
CH2530A
(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
CH2531A
(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
CH7241A
(en )
1894-02-15
Suspension device for electric light bulbs
ES9150A1
(en )
1889-03-01
Improvements introduced in electric incandescent lamps connected in series by series.
ES9263A1
(en )
1889-04-16
For improvements in lighting by means of incandescent electric lamps.
CH71627A
(en )
1916-02-01
Holders for electric light bulbs
ES11619A1
(en )
1891-02-16
Improvements in support devices for electric incandescent lamps.
CH1208A
(en )
1889-10-31
Candle carrier
CH2742A
(en )
1891-02-28
Bulb holder
CH4051A
(en )
1892-02-15
Electric light bulb without platinum
CH2537A
(en )
1891-02-14
Innovation in incandescent bodies for electric vacuum light bulbs
CH74281A
(en )
1917-02-01
Base for electric light bulbs
ES9136A2
(en )
1889-05-16
Lamps improvements.
CH3632A
(en )
1892-02-15
Incandescent lamp for three-phase current
CH25565A
(en )
1903-05-31
Filament for electric light bulbs
CH13070A
(en )
1897-04-30
Luminaries for electric light bulbs
CH6506A
(en )
1893-11-30
Advanced lamp holder for electric lamps
CH2591A
(en )
1891-01-31
Electric arc lamp