FR643689A - Lampe-bâton à foyer réglable - Google Patents

Lampe-bâton à foyer réglable

Info

Publication number
FR643689A
FR643689A FR643689DA FR643689A FR 643689 A FR643689 A FR 643689A FR 643689D A FR643689D A FR 643689DA FR 643689 A FR643689 A FR 643689A
Authority
FR
France
Prior art keywords
adjustable focus
stick lamp
focus stick
lamp
adjustable
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
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.)
ENN WERKE
Original Assignee
ENN WERKE
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 ENN WERKE filed Critical ENN WERKE
Application granted granted Critical
Publication of FR643689A publication Critical patent/FR643689A/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
    • 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)
FR643689D 1926-11-27 1927-11-09 Lampe-bâton à foyer réglable Expired FR643689A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE643689X 1926-11-27

Publications (1)

Publication Number Publication Date
FR643689A true FR643689A (fr) 1928-09-21

Family

ID=6580437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR643689D Expired FR643689A (fr) 1926-11-27 1927-11-09 Lampe-bâton à foyer réglable

Country Status (1)

Country Link
FR (1) FR643689A (fr)

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