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FR896344A - Improvements to photographic viewfinders - Google Patents

Improvements to photographic viewfinders

Info

Publication number
FR896344A
FR896344A FR896344DA FR896344A FR 896344 A FR896344 A FR 896344A FR 896344D A FR896344D A FR 896344DA FR 896344 A FR896344 A FR 896344A
Authority
FR
France
Prior art keywords
viewfinders
photographic
photographic viewfinders
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
Roger Lemasson
Roger Lucas
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 FR896344A publication Critical patent/FR896344A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/14—Viewfinders

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR896344D 1943-07-13 1943-07-13 Improvements to photographic viewfinders Expired FR896344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR896344T 1943-07-13

Publications (1)

Publication Number Publication Date
FR896344A true FR896344A (en) 1945-02-19

Family

ID=9391078

Family Applications (1)

Application Number Title Priority Date Filing Date
FR896344D Expired FR896344A (en) 1943-07-13 1943-07-13 Improvements to photographic viewfinders

Country Status (1)

Country Link
FR (1) FR896344A (en)

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