FR938128A - Change-vues va-et-vient - Google Patents

Change-vues va-et-vient

Info

Publication number
FR938128A
FR938128A FR938128DA FR938128A FR 938128 A FR938128 A FR 938128A FR 938128D A FR938128D A FR 938128DA FR 938128 A FR938128 A FR 938128A
Authority
FR
France
Prior art keywords
views
forth change
forth
change
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
Alexandre Abraham
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 FR938128A publication Critical patent/FR938128A/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
    • G02B27/02—Viewing or reading apparatus
    • G02B27/022—Viewing apparatus
    • G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
    • G02B27/025—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies and magnifying means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR938128D 1946-12-14 1946-12-14 Change-vues va-et-vient Expired FR938128A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR938128T 1946-12-14

Publications (1)

Publication Number Publication Date
FR938128A true FR938128A (fr) 1948-09-06

Family

ID=9458254

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938128D Expired FR938128A (fr) 1946-12-14 1946-12-14 Change-vues va-et-vient

Country Status (1)

Country Link
FR (1) FR938128A (fr)

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