FR748938A - Obtaining signs and drawings by light reflection - Google Patents

Obtaining signs and drawings by light reflection

Info

Publication number
FR748938A
FR748938A FR748938DA FR748938A FR 748938 A FR748938 A FR 748938A FR 748938D A FR748938D A FR 748938DA FR 748938 A FR748938 A FR 748938A
Authority
FR
France
Prior art keywords
drawings
light reflection
signs
obtaining
obtaining signs
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
Herve De La Roche Kerandraon
Joseph Galuszka
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 FR748938A publication Critical patent/FR748938A/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
    • G09F13/16—Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR748938D 1932-12-17 1932-12-17 Obtaining signs and drawings by light reflection Expired FR748938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR748938T 1932-12-17

Publications (1)

Publication Number Publication Date
FR748938A true FR748938A (en) 1933-07-13

Family

ID=9148780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR748938D Expired FR748938A (en) 1932-12-17 1932-12-17 Obtaining signs and drawings by light reflection

Country Status (1)

Country Link
FR (1) FR748938A (en)

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