FR671932A - Signaling device - Google Patents

Signaling device

Info

Publication number
FR671932A
FR671932A FR671932DA FR671932A FR 671932 A FR671932 A FR 671932A FR 671932D A FR671932D A FR 671932DA FR 671932 A FR671932 A FR 671932A
Authority
FR
France
Prior art keywords
signaling device
signaling
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
Andre Menager
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 FR671932A publication Critical patent/FR671932A/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
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/14—Advertising or display means not otherwise provided for using special optical effects displaying different signs depending upon the view-point of the observer

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR671932D 1929-03-22 1929-03-22 Signaling device Expired FR671932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR671932T 1929-03-22

Publications (1)

Publication Number Publication Date
FR671932A true FR671932A (en) 1929-12-20

Family

ID=9017232

Family Applications (1)

Application Number Title Priority Date Filing Date
FR671932D Expired FR671932A (en) 1929-03-22 1929-03-22 Signaling device

Country Status (1)

Country Link
FR (1) FR671932A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6041533A (en) * 1998-01-26 2000-03-28 Lemmond, Jr.; R. Nelson Advertising step systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6041533A (en) * 1998-01-26 2000-03-28 Lemmond, Jr.; R. Nelson Advertising step systems

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