FR335540A - Perfectionnements aux lampes de sureté - Google Patents

Perfectionnements aux lampes de sureté

Info

Publication number
FR335540A
FR335540A FR335540DA FR335540A FR 335540 A FR335540 A FR 335540A FR 335540D A FR335540D A FR 335540DA FR 335540 A FR335540 A FR 335540A
Authority
FR
France
Prior art keywords
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
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.)
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 FR335540A publication Critical patent/FR335540A/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
    • F21L23/00—Non-electric hand-lamps for miners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V37/00—Details of lighting devices employing combustion as light source, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
FR335540D 1903-09-24 1903-09-24 Perfectionnements aux lampes de sureté Expired FR335540A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR335540T 1903-09-24

Publications (1)

Publication Number Publication Date
FR335540A true FR335540A (fr) 1904-01-29

Family

ID=1385008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR335540D Expired FR335540A (fr) 1903-09-24 1903-09-24 Perfectionnements aux lampes de sureté

Country Status (1)

Country Link
FR (1) FR335540A (fr)

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