FR791549A - Improvements to portable electric lights - Google Patents

Improvements to portable electric lights

Info

Publication number
FR791549A
FR791549A FR791549DA FR791549A FR 791549 A FR791549 A FR 791549A FR 791549D A FR791549D A FR 791549DA FR 791549 A FR791549 A FR 791549A
Authority
FR
France
Prior art keywords
portable electric
electric lights
lights
portable
electric
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.)
Piles & Accumulateurs Eler
Original Assignee
Piles & Accumulateurs Eler
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 Piles & Accumulateurs Eler filed Critical Piles & Accumulateurs Eler
Application granted granted Critical
Publication of FR791549A publication Critical patent/FR791549A/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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L2/00—Systems of electric lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR791549D 1934-09-15 1934-09-15 Improvements to portable electric lights Expired FR791549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR791549T 1934-09-15

Publications (1)

Publication Number Publication Date
FR791549A true FR791549A (en) 1935-12-12

Family

ID=9226717

Family Applications (1)

Application Number Title Priority Date Filing Date
FR791549D Expired FR791549A (en) 1934-09-15 1934-09-15 Improvements to portable electric lights

Country Status (1)

Country Link
FR (1) FR791549A (en)

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