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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CIAIS ROGER
Original Assignee
CIAIS ROGER
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Filing date
Publication date
Application filed by CIAIS ROGERfiledCriticalCIAIS ROGER
Priority to FR7413979ApriorityCriticalpatent/FR2269103A2/fr
Publication of FR2269103A2publicationCriticalpatent/FR2269103A2/fr
Application grantedgrantedCritical
Publication of FR2269103B2publicationCriticalpatent/FR2269103B2/fr
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
G03B21/00—Projectors or projection-type viewers; Accessories therefor
G03B21/10—Projectors with built-in or built-on screen
G03B21/11—Projectors with built-in or built-on screen for microfilm reading
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR7413979A1974-04-231974-04-23Portable microfilm viewing means - incorporates selective device with cursor for locating desired image on microfilm
GrantedFR2269103A2
(en)