FR574194A - Improvements made to electric lamps or lanterns - Google Patents

Improvements made to electric lamps or lanterns

Info

Publication number
FR574194A
FR574194A FR574194DA FR574194A FR 574194 A FR574194 A FR 574194A FR 574194D A FR574194D A FR 574194DA FR 574194 A FR574194 A FR 574194A
Authority
FR
France
Prior art keywords
lanterns
improvements made
electric lamps
lamps
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)
Inventor
George Arthur Henry Wootton
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 FR574194A publication Critical patent/FR574194A/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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)
FR574194D 1922-11-23 1923-11-21 Improvements made to electric lamps or lanterns Expired FR574194A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB574194X 1922-11-23

Publications (1)

Publication Number Publication Date
FR574194A true FR574194A (en) 1924-07-07

Family

ID=10479141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR574194D Expired FR574194A (en) 1922-11-23 1923-11-21 Improvements made to electric lamps or lanterns

Country Status (1)

Country Link
FR (1) FR574194A (en)

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