FR353474A - Appareil pour observations sous-marines - Google Patents

Appareil pour observations sous-marines

Info

Publication number
FR353474A
FR353474A FR353474DA FR353474A FR 353474 A FR353474 A FR 353474A FR 353474D A FR353474D A FR 353474DA FR 353474 A FR353474 A FR 353474A
Authority
FR
France
Prior art keywords
underwater observations
underwater
observations
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
Justus Cornelis Zubli
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 FR353474A publication Critical patent/FR353474A/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
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
    • G02B23/22—Underwater equipment

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR353474D 1905-04-17 1905-04-17 Appareil pour observations sous-marines Expired FR353474A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR353474T 1905-04-17

Publications (1)

Publication Number Publication Date
FR353474A true FR353474A (fr) 1905-09-12

Family

ID=1401634

Family Applications (1)

Application Number Title Priority Date Filing Date
FR353474D Expired FR353474A (fr) 1905-04-17 1905-04-17 Appareil pour observations sous-marines

Country Status (1)

Country Link
FR (1) FR353474A (fr)

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