FR516746A - Improvements to lighting glassworks - Google Patents

Improvements to lighting glassworks

Info

Publication number
FR516746A
FR516746A FR516746A FR516746DA FR516746A FR 516746 A FR516746 A FR 516746A FR 516746 A FR516746 A FR 516746A FR 516746D A FR516746D A FR 516746DA FR 516746 A FR516746 A FR 516746A
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
FR516746A
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 FR516746A publication Critical patent/FR516746A/en
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)
FR516746A 1915-12-31 1920-06-10 Improvements to lighting glassworks Expired FR516746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US516746XA 1915-12-31 1915-12-31

Publications (1)

Publication Number Publication Date
FR516746A true FR516746A (en) 1921-04-25

Family

ID=21972714

Family Applications (1)

Application Number Title Priority Date Filing Date
FR516746A Expired FR516746A (en) 1915-12-31 1920-06-10 Improvements to lighting glassworks

Country Status (1)

Country Link
FR (1) FR516746A (en)

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