DK43785C
(en )
1931-03-02
Apparatus for recording sound on a light-sensitive film.
DK44677C
(en )
1931-10-05
Device for recording sound waves on a light-sensitive carrier.
SU16442A1
(en )
1930-08-31
Device for reproducing sound during film projection
SU12923A1
(en )
1930-01-31
Device for recording sound on film
DK43944C
(en )
1931-03-30
Procedure for Continuous Reproduction of Images of a Relief-Patterned Film on Another Relief-Patterned Film and Device for Execution of the Procedure.
DK42610C
(en )
1930-07-14
Procedure and arrangement of sound recording systems on a photosensitive film.
DK33360C
(en )
1924-06-16
Device for writing down sound on a photographic film moved at a constant speed.
DK42151C
(en )
1930-05-05
Projection apparatus for reproducing on one relief-patterned film of color images recorded on another relief-patterned film.
DK44653C
(en )
1931-09-28
Method for reproducing photographic color images of another relief-patterned film on a relief-patterned film.
DK43950C
(en )
1931-04-07
Device for Sound Reproduction Systems.
DK43148C
(en )
1930-10-13
Device for Sound Reproduction Systems.
FR666816A
(en )
1929-10-07
Cinematographic film rewinder
DK40876C
(en )
1929-10-07
Device for Reproduction of Cinematographic Films.
DK41813C
(en )
1930-03-10
Projection apparatus for Reproduction of embossed films.
DK36910C
(en )
1926-12-13
Device for Recording and Reproducing Cinematographic, Colored Films.
DK42563C
(en )
1930-07-07
Apparatus for Performing Films.
DK46673C
(en )
1932-12-27
Device for Reproduction of Photographic Images Carried by a Relief Patterned Carrier.
DK32243C
(en )
1923-09-10
Apparatus for photographic recording of sound waves on a recording tape.
ES119632A1
(en )
1930-11-16
A new device for the reproduction of sound film tapes.
DK44743C
(en )
1931-10-26
Apparatus for Determining the Direction of a Sounder.
DK39639C
(en )
1928-12-27
Procedure for reproducing a film with refractive line mesh on another similar film.
DK42898C
(en )
1930-09-08
Device for rotatable support of a dynamo on a bicycle frame.
DK65696C
(en )
1947-09-29
Apparatus for rewinding an endless film tape.
DK42391C
(en )
1930-06-16
Apparatus for Cinematographic Shooting.
DK44913C
(en )
1931-11-30
Procedure for Developing Cinematographic Films.