FR1058753A - Apparatus for observing changing images - Google Patents

Apparatus for observing changing images

Info

Publication number
FR1058753A
FR1058753A FR1058753DA FR1058753A FR 1058753 A FR1058753 A FR 1058753A FR 1058753D A FR1058753D A FR 1058753DA FR 1058753 A FR1058753 A FR 1058753A
Authority
FR
France
Prior art keywords
changing images
observing
observing changing
images
changing
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)
Inventor
Engelken
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 FR1058753A publication Critical patent/FR1058753A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/34—Illuminated signs; Luminous advertising with light sources co-operating with movable members, e.g. with shutters to cover or uncover the light source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR1058753D 1949-08-27 1950-08-25 Apparatus for observing changing images Expired FR1058753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1058753XA 1949-08-27 1949-08-27

Publications (1)

Publication Number Publication Date
FR1058753A true FR1058753A (en) 1954-03-18

Family

ID=22308251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1058753D Expired FR1058753A (en) 1949-08-27 1950-08-25 Apparatus for observing changing images

Country Status (1)

Country Link
FR (1) FR1058753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254783A1 (en) * 1984-06-13 1988-02-03 Stephen Weinreich Digital screen display apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254783A1 (en) * 1984-06-13 1988-02-03 Stephen Weinreich Digital screen display apparatus

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