FR767034A - Perfectionnement aux appareils photographiques - Google Patents

Perfectionnement aux appareils photographiques

Info

Publication number
FR767034A
FR767034A FR767034DA FR767034A FR 767034 A FR767034 A FR 767034A FR 767034D A FR767034D A FR 767034DA FR 767034 A FR767034 A FR 767034A
Authority
FR
France
Prior art keywords
cameras
further training
training
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)
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Ernst Leitz GmbH
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 Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Application granted granted Critical
Publication of FR767034A publication Critical patent/FR767034A/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)
FR767034D 1932-04-11 1933-04-06 Perfectionnement aux appareils photographiques Expired FR767034A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE767034X 1932-04-11

Publications (1)

Publication Number Publication Date
FR767034A true FR767034A (fr) 1934-07-09

Family

ID=1551396

Family Applications (1)

Application Number Title Priority Date Filing Date
FR767034D Expired FR767034A (fr) 1932-04-11 1933-04-06 Perfectionnement aux appareils photographiques

Country Status (1)

Country Link
FR (1) FR767034A (fr)

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