FR728498A - Improvements to light projectors - Google Patents

Improvements to light projectors

Info

Publication number
FR728498A
FR728498A FR728498DA FR728498A FR 728498 A FR728498 A FR 728498A FR 728498D A FR728498D A FR 728498DA FR 728498 A FR728498 A FR 728498A
Authority
FR
France
Prior art keywords
light projectors
projectors
light
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
Joseph Rosa
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 FR728498A publication Critical patent/FR728498A/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
    • F21V21/26—Pivoted arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR728498D 1931-02-26 1931-02-26 Improvements to light projectors Expired FR728498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR728498T 1931-02-26

Publications (1)

Publication Number Publication Date
FR728498A true FR728498A (en) 1932-07-06

Family

ID=9111878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR728498D Expired FR728498A (en) 1931-02-26 1931-02-26 Improvements to light projectors

Country Status (1)

Country Link
FR (1) FR728498A (en)

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