FR2370297B1 - - Google Patents

Info

Publication number
FR2370297B1
FR2370297B1 FR7733830A FR7733830A FR2370297B1 FR 2370297 B1 FR2370297 B1 FR 2370297B1 FR 7733830 A FR7733830 A FR 7733830A FR 7733830 A FR7733830 A FR 7733830A FR 2370297 B1 FR2370297 B1 FR 2370297B1
Authority
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
FR7733830A
Other languages
French (fr)
Other versions
FR2370297A1 (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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of FR2370297A1 publication Critical patent/FR2370297A1/en
Application granted granted Critical
Publication of FR2370297B1 publication Critical patent/FR2370297B1/fr
Granted 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
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
FR7733830A 1976-11-04 1977-11-03 Viewer for container with small aperture - has system of mirrors rotated parallel and normal to viewing axis Granted FR2370297A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE847998 1976-11-04

Publications (2)

Publication Number Publication Date
FR2370297A1 FR2370297A1 (en) 1978-06-02
FR2370297B1 true FR2370297B1 (en) 1984-07-13

Family

ID=3861438

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733830A Granted FR2370297A1 (en) 1976-11-04 1977-11-03 Viewer for container with small aperture - has system of mirrors rotated parallel and normal to viewing axis

Country Status (3)

Country Link
JP (1) JPS53107859A (en)
FR (1) FR2370297A1 (en)
LU (1) LU78443A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028430A (en) * 1934-01-16 1936-01-21 William A Baddorf Oil tank inspection device
FR1231076A (en) * 1959-03-13 1960-09-26 Afocal optical device with protective frame against hazardous radiation
CH403999A (en) * 1961-02-06 1965-12-15 Clave Serge Observation window
FR80978E (en) * 1962-01-05 1963-07-12 Compteurs Comp D Improvements to periscope devices for observing the interior of furnaces, in particular with the help of a television camera
DE1220632B (en) * 1962-06-27 1966-07-07 Serge Clave Periscope with anterior pupil and an optical element attached to the cooling envelope
FR1459080A (en) * 1965-09-13 1966-04-29 Commissariat Energie Atomique Stereoscopic telescope for remote observation of objects placed in a sealed enclosure
AT328912B (en) * 1973-06-29 1976-04-12 Wasserfaller G GATE LOCK
JPS51131341A (en) * 1975-05-09 1976-11-15 Nippon Steel Corp Telemonitoring device

Also Published As

Publication number Publication date
JPS53107859A (en) 1978-09-20
LU78443A1 (en) 1978-02-16
FR2370297A1 (en) 1978-06-02

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Legal Events

Date Code Title Description
ST Notification of lapse