FR1049408A - Improvements to street lighting devices - Google Patents

Improvements to street lighting devices

Info

Publication number
FR1049408A
FR1049408A FR1049408DA FR1049408A FR 1049408 A FR1049408 A FR 1049408A FR 1049408D A FR1049408D A FR 1049408DA FR 1049408 A FR1049408 A FR 1049408A
Authority
FR
France
Prior art keywords
lighting devices
street lighting
street
devices
lighting
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Holophane SAS
Original Assignee
Holophane SAS
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 by Holophane SAS filed Critical Holophane SAS
Application granted granted Critical
Publication of FR1049408A publication Critical patent/FR1049408A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR1049408D 1950-07-22 1951-07-04 Improvements to street lighting devices Expired FR1049408A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1049408X 1950-07-22

Publications (1)

Publication Number Publication Date
FR1049408A true FR1049408A (en) 1953-12-29

Family

ID=10870479

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1049408D Expired FR1049408A (en) 1950-07-22 1951-07-04 Improvements to street lighting devices

Country Status (1)

Country Link
FR (1) FR1049408A (en)

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