DK32217C
(en )
1923-09-03
Lens system for projection of film images.
FR543688A
(en )
1922-09-07
Cinematographic projection system
DK31668C
(en )
1923-05-07
Optical Reflection Device for Photographic or Cinematographic Images.
FR558986A
(en )
1923-09-07
Dual projector lens
DK33304C
(en )
1924-06-02
Movies for Live Pictures.
DK34955C
(en )
1925-09-07
Procedure for Making Films for Live Images.
DK28907C
(en )
1921-12-05
Apparatus for Projection of Live Images.
DK33955C
(en )
1924-12-15
Optical Projection System.
DK31607C
(en )
1923-04-30
Unroller for Cinematographic Films.
FI8695A
(en )
1921-09-02
Photographic film
FR23332E
(en )
1921-11-02
Cinematographic projection framing system
FR526263A
(en )
1921-10-06
Device for cinematographic projection
DK32196C
(en )
1923-09-03
Cinematographic projection apparatus.
DK32203C
(en )
1923-09-03
Cinematographic projection apparatus.
DK32202C
(en )
1923-09-03
Cinematographic projection apparatus.
FR548508A
(en )
1923-01-17
Frame-holder for the projection of photographic slide plates
GB175466A
(en )
1922-02-23
Lens stops or diaphragms for photographic purposes
FR560320A
(en )
1923-10-02
Optical system for cinematographic projection
CH95052A
(en )
1922-06-01
Target system with device for cinematographic image projection.
FR539076A
(en )
1922-06-21
Advanced device for the projection of cinematographic films
FR534377A
(en )
1922-03-24
Hub for photographic or cinematographic film
DK31453C
(en )
1923-03-26
For Copying Photographic Negatives Specific Mask with Associated Backing.
DK33914C
(en )
1924-11-24
Projector for Color Cinematography.
FR589599A
(en )
1925-06-02
Improvements to optical systems for photographic chambers, cinematographic projectors, etc.
DK25268C
(en )
1919-12-08
Device for Photographic Cameras for Using Film Gaskets.