FR689567A - Polygonal contour diffuser for electric lighting - Google Patents

Polygonal contour diffuser for electric lighting

Info

Publication number
FR689567A
FR689567A FR689567DA FR689567A FR 689567 A FR689567 A FR 689567A FR 689567D A FR689567D A FR 689567DA FR 689567 A FR689567 A FR 689567A
Authority
FR
France
Prior art keywords
diffuser
electric lighting
polygonal contour
polygonal
contour
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
Camille-Samuel Afia
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 FR689567A publication Critical patent/FR689567A/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)
FR689567D 1930-02-07 1930-02-07 Polygonal contour diffuser for electric lighting Expired FR689567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR689567T 1930-02-07

Publications (1)

Publication Number Publication Date
FR689567A true FR689567A (en) 1930-09-09

Family

ID=9027343

Family Applications (1)

Application Number Title Priority Date Filing Date
FR689567D Expired FR689567A (en) 1930-02-07 1930-02-07 Polygonal contour diffuser for electric lighting

Country Status (1)

Country Link
FR (1) FR689567A (en)

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