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FR889627A - Improvements to light boxes used for examining x-rays - Google Patents

Improvements to light boxes used for examining x-rays

Info

Publication number
FR889627A
FR889627A FR889627DA FR889627A FR 889627 A FR889627 A FR 889627A FR 889627D A FR889627D A FR 889627DA FR 889627 A FR889627 A FR 889627A
Authority
FR
France
Prior art keywords
examining
rays
light boxes
boxes used
light
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
French (fr)
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.)
Kolen & Delhumeau
Original Assignee
Kolen & Delhumeau
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 Kolen & Delhumeau filed Critical Kolen & Delhumeau
Application granted granted Critical
Publication of FR889627A publication Critical patent/FR889627A/en
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
    • G02B27/04—Viewing or reading apparatus having collapsible parts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR889627D 1942-09-03 1942-09-03 Improvements to light boxes used for examining x-rays Expired FR889627A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR889627T 1942-09-03

Publications (1)

Publication Number Publication Date
FR889627A true FR889627A (en) 1944-01-14

Family

ID=9377216

Family Applications (1)

Application Number Title Priority Date Filing Date
FR889627D Expired FR889627A (en) 1942-09-03 1942-09-03 Improvements to light boxes used for examining x-rays

Country Status (1)

Country Link
FR (1) FR889627A (en)

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