FR471055A - Improvement in safety lamps for minors - Google Patents

Improvement in safety lamps for minors

Info

Publication number
FR471055A
FR471055A FR471055DA FR471055A FR 471055 A FR471055 A FR 471055A FR 471055D A FR471055D A FR 471055DA FR 471055 A FR471055 A FR 471055A
Authority
FR
France
Prior art keywords
minors
improvement
safety lamps
lamps
safety
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)
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.)
ECLAIRAGE ET D APPLIC ELECTR D
Original Assignee
ECLAIRAGE ET D APPLIC ELECTR D
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 ECLAIRAGE ET D APPLIC ELECTR D filed Critical ECLAIRAGE ET D APPLIC ELECTR D
Application granted granted Critical
Publication of FR471055A publication Critical patent/FR471055A/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
    • F21L23/00—Non-electric hand-lamps for miners

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR471055D 1914-04-11 1914-04-11 Improvement in safety lamps for minors Expired FR471055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR471055T 1914-04-11

Publications (1)

Publication Number Publication Date
FR471055A true FR471055A (en) 1914-10-13

Family

ID=1509354

Family Applications (1)

Application Number Title Priority Date Filing Date
FR471055D Expired FR471055A (en) 1914-04-11 1914-04-11 Improvement in safety lamps for minors

Country Status (1)

Country Link
FR (1) FR471055A (en)

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