FR47470E - Improvements to episcopic devices - Google Patents

Improvements to episcopic devices

Info

Publication number
FR47470E
FR47470E FR47470DA FR47470E FR 47470 E FR47470 E FR 47470E FR 47470D A FR47470D A FR 47470DA FR 47470 E FR47470 E FR 47470E
Authority
FR
France
Prior art keywords
episcopic
devices
episcopic 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
French (fr)
Inventor
Louis Mestre
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.)
Anciens Etablissements Barbier Benard and Turenne SA
Original Assignee
Anciens Etablissements Barbier Benard and Turenne SA
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 Anciens Etablissements Barbier Benard and Turenne SA filed Critical Anciens Etablissements Barbier Benard and Turenne SA
Application granted granted Critical
Publication of FR47470E publication Critical patent/FR47470E/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/06Projectors or projection-type viewers; Accessories therefor affording only episcopic projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR47470D 1936-06-15 1936-06-15 Improvements to episcopic devices Expired FR47470E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR47470T 1936-06-15

Publications (1)

Publication Number Publication Date
FR47470E true FR47470E (en) 1937-05-22

Family

ID=8682955

Family Applications (1)

Application Number Title Priority Date Filing Date
FR47470D Expired FR47470E (en) 1936-06-15 1936-06-15 Improvements to episcopic devices

Country Status (1)

Country Link
FR (1) FR47470E (en)

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