Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Engl Joseph
Original Assignee
Engl Joseph
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Publication date
Application filed by Engl JosephfiledCriticalEngl Joseph
Priority to ES77413ApriorityCriticalpatent/ES77413A1/en
Publication of ES77413A1publicationCriticalpatent/ES77413A1/en
ES77413A1921-03-161921-03-16
A provision for synchronous printing and projection of optical-acoustic scenes, especially for cinematographic purposes.
ExpiredES77413A1
(en)
A procedure for the ordinary or cinematographic projection of several images superimposed on one or more plates or films, but giving rise to different projections.