FR548758A - Electric light announcement device - Google Patents

Electric light announcement device

Info

Publication number
FR548758A
FR548758A FR548758DA FR548758A FR 548758 A FR548758 A FR 548758A FR 548758D A FR548758D A FR 548758DA FR 548758 A FR548758 A FR 548758A
Authority
FR
France
Prior art keywords
electric light
announcement device
light announcement
electric
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)
Inventor
Paul Jager
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 FR548758A publication Critical patent/FR548758A/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
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/307—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being incandescent filaments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR548758D 1921-02-23 1922-02-21 Electric light announcement device Expired FR548758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH548758X 1921-02-23

Publications (1)

Publication Number Publication Date
FR548758A true FR548758A (en) 1923-01-25

Family

ID=4519495

Family Applications (1)

Application Number Title Priority Date Filing Date
FR548758D Expired FR548758A (en) 1921-02-23 1922-02-21 Electric light announcement device

Country Status (1)

Country Link
FR (1) FR548758A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5819454A (en) * 1993-12-30 1998-10-13 Rosenitsch; Harald Display device having triangular reflectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5819454A (en) * 1993-12-30 1998-10-13 Rosenitsch; Harald Display device having triangular reflectors

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