FR23798E - Viseur pour avions - Google Patents

Viseur pour avions

Info

Publication number
FR23798E
FR23798E FR23798A FR23798DA FR23798E FR 23798 E FR23798 E FR 23798E FR 23798 A FR23798 A FR 23798A FR 23798D A FR23798D A FR 23798DA FR 23798 E FR23798 E FR 23798E
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
FR23798A
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 FR23798E publication Critical patent/FR23798E/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)
FR23798A 1916-08-16 1916-08-16 Viseur pour avions Expired FR23798E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR23798T 1916-08-16

Publications (1)

Publication Number Publication Date
FR23798E true FR23798E (fr) 1921-12-30

Family

ID=8662497

Family Applications (1)

Application Number Title Priority Date Filing Date
FR23798A Expired FR23798E (fr) 1916-08-16 1916-08-16 Viseur pour avions

Country Status (1)

Country Link
FR (1) FR23798E (fr)

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