FR720503A - Appareil de projection épiscopique - Google Patents

Appareil de projection épiscopique

Info

Publication number
FR720503A
FR720503A FR720503DA FR720503A FR 720503 A FR720503 A FR 720503A FR 720503D A FR720503D A FR 720503DA FR 720503 A FR720503 A FR 720503A
Authority
FR
France
Prior art keywords
projection apparatus
episcopic projection
episcopic
projection
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
Reinhold Kupfer
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 FR720503A publication Critical patent/FR720503A/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
    • G03B21/06—Projectors or projection-type viewers; Accessories therefor affording only episcopic projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR720503D 1930-07-23 1931-07-22 Appareil de projection épiscopique Expired FR720503A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE720503X 1930-07-23

Publications (1)

Publication Number Publication Date
FR720503A true FR720503A (fr) 1932-02-20

Family

ID=6628142

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720503D Expired FR720503A (fr) 1930-07-23 1931-07-22 Appareil de projection épiscopique

Country Status (1)

Country Link
FR (1) FR720503A (fr)

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