FR681294A - Device for fixing incandescent lamps in miner's electric lamps - Google Patents

Device for fixing incandescent lamps in miner's electric lamps

Info

Publication number
FR681294A
FR681294A FR681294DA FR681294A FR 681294 A FR681294 A FR 681294A FR 681294D A FR681294D A FR 681294DA FR 681294 A FR681294 A FR 681294A
Authority
FR
France
Prior art keywords
lamps
miner
fixing
electric
incandescent
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.)
CEAG Concordia Elekrizitats AG
Original Assignee
CEAG Concordia Elekrizitats AG
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 CEAG Concordia Elekrizitats AG filed Critical CEAG Concordia Elekrizitats AG
Application granted granted Critical
Publication of FR681294A publication Critical patent/FR681294A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L2/00—Systems of electric lighting devices
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR681294D 1929-07-19 1929-09-04 Device for fixing incandescent lamps in miner's electric lamps Expired FR681294A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE681294X 1929-07-19

Publications (1)

Publication Number Publication Date
FR681294A true FR681294A (en) 1930-05-13

Family

ID=6596799

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681294D Expired FR681294A (en) 1929-07-19 1929-09-04 Device for fixing incandescent lamps in miner's electric lamps

Country Status (1)

Country Link
FR (1) FR681294A (en)

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