CH40495A
(en )
1908-07-16
Photometer for electric lamps
CH38536A
(en )
1907-11-15
Suspension device for electric lamps
CH39099A
(en )
1908-02-01
Incandescent bodies for electric lamps
CH39208A
(en )
1908-02-17
Incandescent bodies for electric lamps
CH38864A
(en )
1908-01-02
Electric arc lamp
CH39971A
(en )
1908-05-16
Suspension device for electric lighting fixtures
CH42116A
(en )
1909-01-02
Electric arc lamp
CH37525A
(en )
1907-06-15
Protective cage for electric lamps
CH41495A
(en )
1908-11-02
Bowl holder for electric light bulbs etc.
CH29358A
(en )
1904-08-31
Incandescent bodies for electric lamps
CH29359A
(en )
1904-08-15
Incandescent bodies for electric lamps
ES41043A1
(en )
1907-07-16
Improvements in incandescent electric lamps.
CH37526A
(en )
1907-06-15
Electric light bulb
CH41676A
(en )
1908-11-16
Rotatable support for electric lamps to be attached to the ceiling
CH38179A
(en )
1907-09-15
Electric train hanging lamp
CH36858A
(en )
1907-03-15
Electric arc lamp
CH64570A
(en )
1914-04-16
Equivalent resistor for electric lamps
DK10246C
(en )
1907-11-18
Electric Arc Lamp.
CH41059A
(en )
1908-09-16
Electric incandescent lamp for direct and indirect lighting
CH40822A
(en )
1908-09-01
Support frame for electrical lines
CH48771A
(en )
1910-12-01
Electric arc lamp
CH48634A
(en )
1910-11-16
Electric arc lamp
CH48831A
(en )
1910-12-01
Electric lighting device on looms
CH48925A
(en )
1910-12-16
Electric light bulb with supported metal threads
ES40327A1
(en )
1907-04-16
An instant contact electric lamp socket.