FR728764A - Viseur - Google Patents

Viseur

Info

Publication number
FR728764A
FR728764A FR728764DA FR728764A FR 728764 A FR728764 A FR 728764A FR 728764D A FR728764D A FR 728764DA FR 728764 A FR728764 A FR 728764A
Authority
FR
France
Prior art keywords
viewfinder
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR728764A publication Critical patent/FR728764A/fr
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)
FR728764D 1930-12-24 1931-12-23 Viseur Expired FR728764A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE728764X 1930-12-24

Publications (1)

Publication Number Publication Date
FR728764A true FR728764A (fr) 1932-07-11

Family

ID=6635802

Family Applications (1)

Application Number Title Priority Date Filing Date
FR728764D Expired FR728764A (fr) 1930-12-24 1931-12-23 Viseur

Country Status (1)

Country Link
FR (1) FR728764A (fr)

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