BE435152A - - Google Patents

Info

Publication number
BE435152A
BE435152A BE435152DA BE435152A BE 435152 A BE435152 A BE 435152A BE 435152D A BE435152D A BE 435152DA BE 435152 A BE435152 A BE 435152A
Authority
BE
Belgium
Prior art keywords
frame
shutter
chamber
light
desc
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE435152A publication Critical patent/BE435152A/fr

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02Viewing or reading apparatus
    • G02B27/022Viewing apparatus
    • G02B27/024Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
BE435152D BE435152A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
BE435152A true BE435152A (enrdf_load_html_response)

Family

ID=94120

Family Applications (1)

Application Number Title Priority Date Filing Date
BE435152D BE435152A (enrdf_load_html_response)

Country Status (1)

Country Link
BE (1) BE435152A (enrdf_load_html_response)

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