FR534040A - Safety lamps improvements - Google Patents

Safety lamps improvements

Info

Publication number
FR534040A
FR534040A FR534040DA FR534040A FR 534040 A FR534040 A FR 534040A FR 534040D A FR534040D A FR 534040DA FR 534040 A FR534040 A FR 534040A
Authority
FR
France
Prior art keywords
safety lamps
lamps
safety
lamps improvements
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 S
Original Assignee
ECLAIRAGE ET D APPLIC ELECTR S
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 S filed Critical ECLAIRAGE ET D APPLIC ELECTR S
Application granted granted Critical
Publication of FR534040A publication Critical patent/FR534040A/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)
FR534040D 1919-11-28 1919-11-28 Safety lamps improvements Expired FR534040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR534040T 1919-11-28

Publications (1)

Publication Number Publication Date
FR534040A true FR534040A (en) 1922-03-16

Family

ID=8925273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR534040D Expired FR534040A (en) 1919-11-28 1919-11-28 Safety lamps improvements

Country Status (1)

Country Link
FR (1) FR534040A (en)

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