FR552570A - Improvements to electro-mechanical lamps - Google Patents

Improvements to electro-mechanical lamps

Info

Publication number
FR552570A
FR552570A FR552570DA FR552570A FR 552570 A FR552570 A FR 552570A FR 552570D A FR552570D A FR 552570DA FR 552570 A FR552570 A FR 552570A
Authority
FR
France
Prior art keywords
lamps
electro
mechanical
mechanical lamps
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
Emile Bonnechaux
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 FR552570A publication Critical patent/FR552570A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L13/00—Electric lighting devices with built-in electric generators
    • F21L13/06—Electric lighting devices with built-in electric generators with mechanical drive, e.g. spring
    • F21L13/08—Electric lighting devices with built-in electric generators with mechanical drive, e.g. spring by reciprocating pusher actuated by hand
FR552570D 1922-06-06 1922-06-06 Improvements to electro-mechanical lamps Expired FR552570A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR552570T 1922-06-06

Publications (1)

Publication Number Publication Date
FR552570A true FR552570A (en) 1923-05-03

Family

ID=8937653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR552570D Expired FR552570A (en) 1922-06-06 1922-06-06 Improvements to electro-mechanical lamps

Country Status (1)

Country Link
FR (1) FR552570A (en)

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