FR617304A - Perfectionnements aux appareils photographiques - Google Patents

Perfectionnements aux appareils photographiques

Info

Publication number
FR617304A
FR617304A FR617304DA FR617304A FR 617304 A FR617304 A FR 617304A FR 617304D A FR617304D A FR 617304DA FR 617304 A FR617304 A FR 617304A
Authority
FR
France
Prior art keywords
cameras
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
Jean Klopcic
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 FR617304A publication Critical patent/FR617304A/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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/18—Focusing aids
    • G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR617304D 1925-10-27 1925-10-27 Perfectionnements aux appareils photographiques Expired FR617304A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR617304T 1925-10-27

Publications (1)

Publication Number Publication Date
FR617304A true FR617304A (fr) 1927-02-17

Family

ID=8982205

Family Applications (1)

Application Number Title Priority Date Filing Date
FR617304D Expired FR617304A (fr) 1925-10-27 1925-10-27 Perfectionnements aux appareils photographiques

Country Status (1)

Country Link
FR (1) FR617304A (fr)

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