DK55199C
(en )
1938-09-12
Electric Incandescent Lamp with a Small Container in Relation to the Watt Consumption of the Lamp.
DK56899C
(en )
1939-11-06
Heat consumption meters.
DK56346C
(en )
1939-06-26
Electric Incandescent lamp with partially reflective Container.
DK60577C
(en )
1943-02-08
Air-filled electric incandescent lamp with a small container volume in relation to the power consumption.
DK53182C
(en )
1937-06-07
Technical Heat Consumption Meter.
DK53614C
(en )
1937-09-20
Electric incandescent lamp with two incandescent wires.
AU1928734A
(en )
1934-10-01
Improvements in or relating to lighting installations
DK59525C
(en )
1942-03-02
Electric Bulb with small Container.
ES134164A1
(en )
1934-07-16
Improvements in the manufacture of incandescent electric lamps.
AU1960534A
(en )
1935-05-09
Improvements in or relating to incandescent electric lamps
ES134038A1
(en )
1934-07-16
Improvements in the manufacture of electric lamps.
DK60255C
(en )
1942-10-19
Electric Incandescent lamp with partially mirrored Container for surface lighting.
ES135953A1
(en )
1935-02-16
Improvement in the manufacture of electric incandescent lamps.
AU1698334A
(en )
1935-08-15
Improvements in or relating to gasfilled incandescent lamps
AU2210735A
(en )
1935-06-06
Improvements in or relating to gasfilled incandescent lamps
ES133749A3
(en )
1934-04-16
Improvements in electric incandescent lamps.
ES134167A1
(en )
1934-08-16
Improvements in electric lamps.
ES136216A1
(en )
1935-01-16
Improvements in electric lamps.
AU1897834A
(en )
1935-07-04
Improvements in or connected with lamps
AU2102035A
(en )
1935-09-12
Improvements in or relating to electric incandescent lamps
AU2096835A
(en )
1936-01-16
Improvements in or relating to incandescent electric lamps
AU2573235A
(en )
1936-07-30
Improvements in or relating to electric incandescent lamps
ES134766A1
(en )
1934-08-16
Improvements introduced in the manufacture of incandescent lamps.
AU106174B2
(en )
1939-01-12
Improvements in or relating to electric incandescent lamps
AU108373B2
(en )
1939-09-07
Improvements in or relating to electric incandescent lamps