FR370853A - Appareil optique permettant l'observation à l'abri - Google Patents

Appareil optique permettant l'observation à l'abri

Info

Publication number
FR370853A
FR370853A FR370853DA FR370853A FR 370853 A FR370853 A FR 370853A FR 370853D A FR370853D A FR 370853DA FR 370853 A FR370853 A FR 370853A
Authority
FR
France
Prior art keywords
optical device
under cover
device allowing
observation under
allowing observation
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)
Inventor
Achille Daubresse
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 FR370853A publication Critical patent/FR370853A/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
    • G02B23/08—Periscopes

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR370853D 1906-10-26 1906-10-26 Appareil optique permettant l'observation à l'abri Expired FR370853A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR370853T 1906-10-26

Publications (1)

Publication Number Publication Date
FR370853A true FR370853A (fr) 1907-02-21

Family

ID=1417745

Family Applications (1)

Application Number Title Priority Date Filing Date
FR370853D Expired FR370853A (fr) 1906-10-26 1906-10-26 Appareil optique permettant l'observation à l'abri

Country Status (1)

Country Link
FR (1) FR370853A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482897A (en) * 1965-10-29 1969-12-09 Gerhard Hopp Periscope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482897A (en) * 1965-10-29 1969-12-09 Gerhard Hopp Periscope

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