FR1552139A - - Google Patents

Info

Publication number
FR1552139A
FR1552139A FR1552139DA FR1552139A FR 1552139 A FR1552139 A FR 1552139A FR 1552139D A FR1552139D A FR 1552139DA FR 1552139 A FR1552139 A FR 1552139A
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FR
France
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
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 filed Critical
Application granted granted Critical
Publication of FR1552139A publication Critical patent/FR1552139A/fr
Expired legal-status Critical Current

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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

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1552139D 1967-11-20 1967-11-20 Expired FR1552139A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR128862 1967-11-20

Publications (1)

Publication Number Publication Date
FR1552139A true FR1552139A (fr) 1969-01-03

Family

ID=8641955

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1552139D Expired FR1552139A (fr) 1967-11-20 1967-11-20

Country Status (1)

Country Link
FR (1) FR1552139A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395095A (en) * 1981-05-20 1983-07-26 The United States Of America As Represented By The Secretary Of The Navy Optical system for infrared tracking
US5953155A (en) * 1997-02-19 1999-09-14 Raytheon Company Optical system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395095A (en) * 1981-05-20 1983-07-26 The United States Of America As Represented By The Secretary Of The Navy Optical system for infrared tracking
US5953155A (en) * 1997-02-19 1999-09-14 Raytheon Company Optical system

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Legal Events

Date Code Title Description
ST Notification of lapse