DK49815C
(en )
1935-01-28
Procedure for the Production of Dihydroresorcin.
DK54712C
(en )
1938-05-09
Procedure for the manufacture of high-pressure lamps, in particular incandescent lamps.
SU52023A1
(en )
1937-11-30
The method of producing divinyl
DK50191C
(en )
1935-04-29
Procedure for the manufacture of aquifers, especially in boilers.
DK53848C
(en )
1937-11-15
Projector, in particular for Operating lamps.
DK51446C
(en )
1936-03-30
Procedure for the manufacture of lampshades.
DK55617C
(en )
1938-12-27
Procedure for the manufacture of internally mirrored electric filament lamps.
DK55222C
(en )
1938-09-19
Procedure for the production of spiral filaments.
DK58467C
(en )
1941-03-03
High pressure metal vapor lamp.
DK56572C
(en )
1939-08-21
High pressure arc lamp.
DK54126C
(en )
1938-01-03
Procedure for Manufacturing Lime Sandstone.
ES134766A1
(en )
1934-08-16
Improvements introduced in the manufacture of incandescent lamps.
DK53770C
(en )
1937-10-25
Procedure for Manufacturing Artifacts.
DK53971C
(en )
1937-12-06
Procedure for Preventing Blackening of Incandescent Lamps.
DK56562C
(en )
1939-08-21
Procedure for the Production of Hydrocarbons.
DK58189C
(en )
1940-11-25
Procedure for the production of tungsten double-wound incandescent filaments for electric incandescent lamps
AT148665B
(en )
1937-02-25
Lighting fixture.
DK52109C
(en )
1936-09-07
Lighting fixture.
DK52158C
(en )
1936-09-14
Lighting fixture.
DK53724C
(en )
1937-10-18
Lighting fixture.
DK53959C
(en )
1937-12-06
Lighting fixture.
DK52368C
(en )
1936-11-30
Procedure for the manufacture of desiccants.
DK52132C
(en )
1936-09-14
Procedure for the production of bifocal, parabolic reflectors.
DK55677C
(en )
1939-01-09
Procedure for Manufacturing Artificial Leather.
DK64630C
(en )
1946-07-15
Procedure for Curing Glass Objects.