FR758013A - Perfectionnement aux lampes de mine - Google Patents

Perfectionnement aux lampes de mine

Info

Publication number
FR758013A
FR758013A FR758013DA FR758013A FR 758013 A FR758013 A FR 758013A FR 758013D A FR758013D A FR 758013DA FR 758013 A FR758013 A FR 758013A
Authority
FR
France
Prior art keywords
development
mine lamps
mine
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
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.)
CIE FRANCAISE AUXILIAIRE DES M
Original Assignee
CIE FRANCAISE AUXILIAIRE DES M
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 CIE FRANCAISE AUXILIAIRE DES M filed Critical CIE FRANCAISE AUXILIAIRE DES M
Application granted granted Critical
Publication of FR758013A publication Critical patent/FR758013A/fr
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)
FR758013D 1933-07-04 1933-07-04 Perfectionnement aux lampes de mine Expired FR758013A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR758013T 1933-07-04

Publications (1)

Publication Number Publication Date
FR758013A true FR758013A (fr) 1934-01-09

Family

ID=9166460

Family Applications (1)

Application Number Title Priority Date Filing Date
FR758013D Expired FR758013A (fr) 1933-07-04 1933-07-04 Perfectionnement aux lampes de mine

Country Status (1)

Country Link
FR (1) FR758013A (fr)

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