FR2175512A1 - - Google Patents

Info

Publication number
FR2175512A1
FR2175512A1 FR7208579A FR7208579A FR2175512A1 FR 2175512 A1 FR2175512 A1 FR 2175512A1 FR 7208579 A FR7208579 A FR 7208579A FR 7208579 A FR7208579 A FR 7208579A FR 2175512 A1 FR2175512 A1 FR 2175512A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7208579A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PAYSANT EUGENE FR
Original Assignee
PAYSANT EUGENE FR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PAYSANT EUGENE FR filed Critical PAYSANT EUGENE FR
Priority to FR7208579A priority Critical patent/FR2175512A1/fr
Publication of FR2175512A1 publication Critical patent/FR2175512A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • 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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
FR7208579A 1972-03-13 1972-03-13 Withdrawn FR2175512A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7208579A FR2175512A1 (en) 1972-03-13 1972-03-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7208579A FR2175512A1 (en) 1972-03-13 1972-03-13

Publications (1)

Publication Number Publication Date
FR2175512A1 true FR2175512A1 (en) 1973-10-26

Family

ID=9095050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7208579A Withdrawn FR2175512A1 (en) 1972-03-13 1972-03-13

Country Status (1)

Country Link
FR (1) FR2175512A1 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse