FR524586A - Procédé et dispositif pour la commande à vitesse variable d'organes rotatifs, en particulier des appareils de projection cinématographiques
- Google Patents
Procédé et dispositif pour la commande à vitesse variable d'organes rotatifs, en particulier des appareils de projection cinématographiques
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G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B19/00—Cameras
G03B19/18—Motion-picture cameras
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FR524586A1920-03-181920-03-18Procédé et dispositif pour la commande à vitesse variable d'organes rotatifs, en particulier des appareils de projection cinématographiques
ExpiredFR524586A
(fr)