FR23799E - Viseur pour avions - Google Patents

Viseur pour avions

Info

Publication number
FR23799E
FR23799E FR23799A FR23799DA FR23799E FR 23799 E FR23799 E FR 23799E FR 23799 A FR23799 A FR 23799A FR 23799D A FR23799D A FR 23799DA FR 23799 E FR23799 E FR 23799E
Authority
FR
France
Prior art keywords
aircraft sight
sight
aircraft
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
FR23799A
Other languages
English (en)
Inventor
Camille Birault
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 FR23799E publication Critical patent/FR23799E/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
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/10—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR23799A 1916-08-16 1916-08-16 Viseur pour avions Expired FR23799E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR23799T 1916-08-16

Publications (1)

Publication Number Publication Date
FR23799E true FR23799E (fr) 1921-12-30

Family

ID=8662498

Family Applications (1)

Application Number Title Priority Date Filing Date
FR23799A Expired FR23799E (fr) 1916-08-16 1916-08-16 Viseur pour avions

Country Status (1)

Country Link
FR (1) FR23799E (fr)

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