FR853298A - Perfectionnements aux appareils de projection - Google Patents

Perfectionnements aux appareils de projection

Info

Publication number
FR853298A
FR853298A FR853298DA FR853298A FR 853298 A FR853298 A FR 853298A FR 853298D A FR853298D A FR 853298DA FR 853298 A FR853298 A FR 853298A
Authority
FR
France
Prior art keywords
projection devices
projection
devices
Prior art date
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.)
Expired
Application number
Other languages
English (en)
Inventor
Marcel Dentzer
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 filed Critical
Application granted granted Critical
Publication of FR853298A publication Critical patent/FR853298A/fr
Expired 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR853298D 1939-04-21 1939-04-21 Perfectionnements aux appareils de projection Expired FR853298A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR853298T 1939-04-21

Publications (1)

Publication Number Publication Date
FR853298A true FR853298A (fr) 1940-03-14

Family

ID=9327008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR853298D Expired FR853298A (fr) 1939-04-21 1939-04-21 Perfectionnements aux appareils de projection

Country Status (1)

Country Link
FR (1) FR853298A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979814A (en) * 1986-02-07 1990-12-25 Stanfield James S Viewing of developed roll of slide film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979814A (en) * 1986-02-07 1990-12-25 Stanfield James S Viewing of developed roll of slide film

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