FR553944A - Improvements to lighting devices - Google Patents

Improvements to lighting devices

Info

Publication number
FR553944A
FR553944A FR553944DA FR553944A FR 553944 A FR553944 A FR 553944A FR 553944D A FR553944D A FR 553944DA FR 553944 A FR553944 A FR 553944A
Authority
FR
France
Prior art keywords
lighting devices
lighting
devices
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
Robert Lengele
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 FR553944A publication Critical patent/FR553944A/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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/16—Adjustable mountings using wires or cords

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR553944D 1922-07-13 1922-07-13 Improvements to lighting devices Expired FR553944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR553944T 1922-07-13

Publications (1)

Publication Number Publication Date
FR553944A true FR553944A (en) 1923-06-01

Family

ID=8938556

Family Applications (1)

Application Number Title Priority Date Filing Date
FR553944D Expired FR553944A (en) 1922-07-13 1922-07-13 Improvements to lighting devices

Country Status (1)

Country Link
FR (1) FR553944A (en)

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