CH176908A
(en )
1935-05-15
Zipper.
FR802755A
(en )
1936-09-15
Color photography
CH182749A
(en )
1936-02-29
Cinematographic camera in natural colors.
FR768967A
(en )
1934-08-17
TV device in natural colors
ES138641A1
(en )
1935-09-01
Improvements in color photography methods.
ES138642A1
(en )
1935-09-01
Improvements in color photography methods.
ES139133A1
(en )
1935-11-01
Improvements in color photography methods.
ES133661A1
(en )
1934-07-01
Improvements in cameras.
FR44201E
(en )
1934-12-01
Cinematography in natural colors
FR764776A
(en )
1934-05-28
Cinematography in natural colors
ES125212A1
(en )
1932-02-01
Improvements in color photography.
ES133664A1
(en )
1934-06-01
Improvements in the procedures of photography or cinematography in colors, through polychrome selection.
FR793937A
(en )
1936-02-04
Cinematographic shooting and projection device applicable in particular to natural color cinematography
GR5545B
(en )
1935-12-02
GOURETOPAYNION ADVERTISING PROFITABLE.
FR776089A
(en )
1935-01-16
Color cinematography
ES133234A1
(en )
1934-03-16
Improvements in television methods.
ES133256A1
(en )
1934-03-16
Improvements in television methods.
ES133195A1
(en )
1934-03-16
Toy cinematographic apparatus.
ES133474A1
(en )
1934-06-01
Improvements in zipper closures.
DK50593C
(en )
1935-08-26
Camera.
FR782074A
(en )
1935-05-27
Further development in natural color cinematography devices
DK49959C
(en )
1935-03-04
Detachable Bicycle Light.
ES136413A1
(en )
1935-02-16
Improvements in the projectors.
DK54158C
(en )
1938-01-10
Copy color screen.
DK50388C
(en )
1935-07-01
Light filter.