FR337535A - Altiscope pour bateaux sous-marins - Google Patents

Altiscope pour bateaux sous-marins

Info

Publication number
FR337535A
FR337535A FR337535DA FR337535A FR 337535 A FR337535 A FR 337535A FR 337535D A FR337535D A FR 337535DA FR 337535 A FR337535 A FR 337535A
Authority
FR
France
Prior art keywords
altiscope
underwater boats
boats
underwater
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)
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.)
Electric Boat Corp
Original Assignee
Electric Boat Corp
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 Electric Boat Corp filed Critical Electric Boat Corp
Application granted granted Critical
Publication of FR337535A publication Critical patent/FR337535A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR337535D 1903-12-08 1903-12-08 Altiscope pour bateaux sous-marins Expired FR337535A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR337535T 1903-12-08

Publications (1)

Publication Number Publication Date
FR337535A true FR337535A (fr) 1904-04-13

Family

ID=33427730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR337535D Expired FR337535A (fr) 1903-12-08 1903-12-08 Altiscope pour bateaux sous-marins

Country Status (1)

Country Link
FR (1) FR337535A (fr)

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