FR485900A - Improvements to cameras - Google Patents

Improvements to cameras

Info

Publication number
FR485900A
FR485900A FR485900DA FR485900A FR 485900 A FR485900 A FR 485900A FR 485900D A FR485900D A FR 485900DA FR 485900 A FR485900 A FR 485900A
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
French (fr)
Inventor
Patrick Joseph Murray
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR485900A publication Critical patent/FR485900A/en
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)
FR485900D 1916-04-28 1917-06-22 Improvements to cameras Expired FR485900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB485900X 1916-04-28

Publications (1)

Publication Number Publication Date
FR485900A true FR485900A (en) 1918-02-15

Family

ID=1522559

Family Applications (1)

Application Number Title Priority Date Filing Date
FR485900D Expired FR485900A (en) 1916-04-28 1917-06-22 Improvements to cameras

Country Status (1)

Country Link
FR (1) FR485900A (en)

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