AT109508B
(en )
1928-05-10
Process for melting the plate foot into the glass bulb of electric light bulbs and similar glass vessels
FR561564A
(en )
1923-10-24
Device for assembling and disassembling the bulbs of electric lamps
FR597125A
(en )
1925-11-13
Lamp from t. s. f.
AT121540B
(en )
1931-02-25
Process for increasing the calorific value of heating and luminous gases and apparatus for carrying out the process.
GB225088A
(en )
1924-11-27
Improvements in lamp pillars
ES88966A1
(en )
1924-11-01
Improvements in the regeneration procedures of electric incandescent lamps of glass ampoules.
FR584609A
(en )
1925-02-10
Bottle holder
ES88365A2
(en )
1924-07-16
Improvements introduced in electric incandescent lamps.
AT108068B
(en )
1927-11-25
Machine for the interior matting of light bulbs and similar glass vessels.
ES81998A2
(en )
1923-03-16
Improvements introduced in electric incandescent lamps.
ES81858A1
(en )
1922-11-16
Improvements introduced in electric incandescent lamps.
ES89581A3
(en )
1924-08-16
Improvements in electric incandescent lamps.
CA237170A
(en )
1924-01-22
Heating lamp
ES100227A1
(en )
1927-01-16
Improvements in electric incandescent lamps.
AT108061B
(en )
1927-11-25
Conveyor device for the connection of partial production machines of electric light bulbs or similar closed glass vessels.
CA264004A
(en )
1926-08-31
Irradiating lamp
DK33967C
(en )
1924-12-22
Lighting and Signaling Apparatus.
CA224737A
(en )
1922-10-10
Process for treating lamp wicks
AT110686B
(en )
1928-09-25
Device for thinning the neck wall of incandescent lamp bulbs or similar glass vessels.
DK32453C
(en )
1923-11-05
Electric Lamp with light scattering Container.
CA5967S
(en )
1923-10-24
Candle
CA5968S
(en )
1923-10-24
Candle
ES72897A3
(en )
1920-05-25
Improvements in the bulbs of the incandescent lamps.
CA258833A
(en )
1926-03-09
Candle lamp
FR568596A
(en )
1924-03-28
Lamp