FR511853A - Periscope - Google Patents

Periscope

Info

Publication number
FR511853A
FR511853A FR511853A FR511853DA FR511853A FR 511853 A FR511853 A FR 511853A FR 511853 A FR511853 A FR 511853A FR 511853D A FR511853D A FR 511853DA FR 511853 A FR511853 A FR 511853A
Authority
FR
France
Prior art keywords
periscope
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
FR511853A
Other languages
French (fr)
Inventor
Marie-Hippolyte-Alph Boisbeal
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.)
MARIE HIPPOLYTE ALPHONSE BOISB
Original Assignee
MARIE HIPPOLYTE ALPHONSE BOISB
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 MARIE HIPPOLYTE ALPHONSE BOISB filed Critical MARIE HIPPOLYTE ALPHONSE BOISB
Application granted granted Critical
Publication of FR511853A publication Critical patent/FR511853A/en
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)
FR511853A 1919-04-29 1919-04-29 Periscope Expired FR511853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR511853T 1919-04-29

Publications (1)

Publication Number Publication Date
FR511853A true FR511853A (en) 1921-01-06

Family

ID=8912591

Family Applications (1)

Application Number Title Priority Date Filing Date
FR511853A Expired FR511853A (en) 1919-04-29 1919-04-29 Periscope

Country Status (1)

Country Link
FR (1) FR511853A (en)

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