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FR711384A - Improvements to illuminated signs, etc. - Google Patents

Improvements to illuminated signs, etc.

Info

Publication number
FR711384A
FR711384A FR711384DA FR711384A FR 711384 A FR711384 A FR 711384A FR 711384D A FR711384D A FR 711384DA FR 711384 A FR711384 A FR 711384A
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 FR711384A publication Critical patent/FR711384A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B15/00—Supervisory desks or panels for centralised control or display

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR711384D 1930-03-01 1931-02-17 Improvements to illuminated signs, etc. Expired FR711384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB711384X 1930-03-01

Publications (1)

Publication Number Publication Date
FR711384A true FR711384A (en) 1931-09-08

Family

ID=10494362

Family Applications (1)

Application Number Title Priority Date Filing Date
FR711384D Expired FR711384A (en) 1930-03-01 1931-02-17 Improvements to illuminated signs, etc.

Country Status (1)

Country Link
FR (1) FR711384A (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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