FR44987E - Improvements to illuminated signs, etc. - Google Patents

Improvements to illuminated signs, etc.

Info

Publication number
FR44987E
FR44987E FR44987DA FR44987E FR 44987 E FR44987 E FR 44987E FR 44987D A FR44987D A FR 44987DA FR 44987 E FR44987 E FR 44987E
Authority
FR
France
Prior art keywords
illuminated signs
illuminated
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
John Windrush Newman
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 FR44987E publication Critical patent/FR44987E/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
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR44987D 1934-07-06 1934-07-06 Improvements to illuminated signs, etc. Expired FR44987E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR44987T 1934-07-06

Publications (1)

Publication Number Publication Date
FR44987E true FR44987E (en) 1935-05-01

Family

ID=8680766

Family Applications (1)

Application Number Title Priority Date Filing Date
FR44987D Expired FR44987E (en) 1934-07-06 1934-07-06 Improvements to illuminated signs, etc.

Country Status (1)

Country Link
FR (1) FR44987E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE768100C (en) * 1936-04-02 1955-06-30 Siemens App Arrangement to achieve homogeneous illumination of small levels for computing devices in which light rays act on a photocell, the intensity of which is influenced by plates with variable permeability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE768100C (en) * 1936-04-02 1955-06-30 Siemens App Arrangement to achieve homogeneous illumination of small levels for computing devices in which light rays act on a photocell, the intensity of which is influenced by plates with variable permeability

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