FR514072A - Perfectionnements aux verreries d'éclairage - Google Patents

Perfectionnements aux verreries d'éclairage

Info

Publication number
FR514072A
FR514072A FR514072A FR514072DA FR514072A FR 514072 A FR514072 A FR 514072A FR 514072 A FR514072 A FR 514072A FR 514072D A FR514072D A FR 514072DA FR 514072 A FR514072 A FR 514072A
Authority
FR
France
Prior art keywords
glassworks
lighting
lighting glassworks
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
FR514072A
Other languages
English (en)
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 FR514072A publication Critical patent/FR514072A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR514072A 1917-05-03 1920-04-19 Perfectionnements aux verreries d'éclairage Expired FR514072A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514072XA 1917-05-03 1917-05-03

Publications (1)

Publication Number Publication Date
FR514072A true FR514072A (fr) 1921-03-02

Family

ID=21971110

Family Applications (1)

Application Number Title Priority Date Filing Date
FR514072A Expired FR514072A (fr) 1917-05-03 1920-04-19 Perfectionnements aux verreries d'éclairage

Country Status (1)

Country Link
FR (1) FR514072A (fr)

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