FR797982A
(en )
1936-05-07
Loud speaker
DK46293C
(en )
1932-10-10
Procedure for the Production of Cinematographic Films.
DK49815C
(en )
1935-01-28
Procedure for the Production of Dihydroresorcin.
DK53128C
(en )
1937-05-24
Procedure for the production of cinematographic images and accompanying sound recordings.
FR796655A
(en )
1936-04-11
Advanced speaker
FR814659A
(en )
1937-06-28
Loud speaker
FR804796A
(en )
1936-11-02
Sound film
DK52360C
(en )
1936-11-30
Process for the Preparation of Desoxymorphine C and Dihydrodeoxymorphine D.
DK64923C
(en )
1946-10-21
Procedure for the production of photographic and cinematographic multicolor images.
FR783990A
(en )
1935-07-20
Improvements upon awakening
FR815095A
(en )
1937-07-05
TV amplifier
DK56760C
(en )
1939-10-02
Procedure for Making and Reproducing Color Films.
DK49160C
(en )
1934-08-20
Procedure for the production of approximately natural-colored cinema images.
FR809478A
(en )
1937-03-03
Advanced speaker
DK51605C
(en )
1936-05-04
Procedure for Nuance in the Production of Film Images.
DK48168C
(en )
1933-12-18
Audio Film and Procedure for Making the Same.
ES138487A1
(en )
1935-09-01
Apparatus for the photographic recording of sounds.
ES130911A1
(en )
1933-07-01
New procedure for photographic recording of sounds.
DK51614C
(en )
1936-05-11
Sound reproducing apparatus.
FR813821A
(en )
1937-06-09
Picture phonograph
DK48567C
(en )
1934-03-26
Apparatus for producing sound.
DK51598C
(en )
1936-05-04
Cinematographic apparatus.
FR806708A
(en )
1936-12-23
Device for the reproduction of sound recordings
ES121436A1
(en )
1931-02-16
Procedure of photographic and cinematographic bichromia.
DK52346C
(en )
1936-11-16
Procedure for the manufacture of roll-piked and multi-layered parts of garments.