FR631463A - Mine lamp - Google Patents

Mine lamp

Info

Publication number
FR631463A
FR631463A FR631463DA FR631463A FR 631463 A FR631463 A FR 631463A FR 631463D A FR631463D A FR 631463DA FR 631463 A FR631463 A FR 631463A
Authority
FR
France
Prior art keywords
mine lamp
mine
lamp
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
Edmond Musy
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 FR631463A publication Critical patent/FR631463A/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
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR631463D 1927-03-26 1927-03-26 Mine lamp Expired FR631463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR631463T 1927-03-26

Publications (1)

Publication Number Publication Date
FR631463A true FR631463A (en) 1927-12-21

Family

ID=8991777

Family Applications (1)

Application Number Title Priority Date Filing Date
FR631463D Expired FR631463A (en) 1927-03-26 1927-03-26 Mine lamp

Country Status (1)

Country Link
FR (1) FR631463A (en)

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