GB649540A - Improvements in apparatus for examining micrographic documents - Google Patents

Improvements in apparatus for examining micrographic documents

Info

Publication number
GB649540A
GB649540A GB34729/47A GB3472947A GB649540A GB 649540 A GB649540 A GB 649540A GB 34729/47 A GB34729/47 A GB 34729/47A GB 3472947 A GB3472947 A GB 3472947A GB 649540 A GB649540 A GB 649540A
Authority
GB
United Kingdom
Prior art keywords
micrographic
examining
documents
micrographic documents
examining micrographic
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
GB34729/47A
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
Publication of GB649540A publication Critical patent/GB649540A/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
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
    • G02B23/18—Housings; Caps; Mountings; Supports, e.g. with counterweight for binocular arrangements
GB34729/47A 1944-12-29 1947-12-30 Improvements in apparatus for examining micrographic documents Expired GB649540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR649540X 1944-12-29

Publications (1)

Publication Number Publication Date
GB649540A true GB649540A (en) 1951-01-31

Family

ID=9003362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34729/47A Expired GB649540A (en) 1944-12-29 1947-12-30 Improvements in apparatus for examining micrographic documents

Country Status (1)

Country Link
GB (1) GB649540A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097172B (en) * 1957-03-02 1961-01-12 Dieter Hofmaier A microfilm reader with angled projection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097172B (en) * 1957-03-02 1961-01-12 Dieter Hofmaier A microfilm reader with angled projection

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