FR831107A - Electric miner's lamp - Google Patents

Electric miner's lamp

Info

Publication number
FR831107A
FR831107A FR831107DA FR831107A FR 831107 A FR831107 A FR 831107A FR 831107D A FR831107D A FR 831107DA FR 831107 A FR831107 A FR 831107A
Authority
FR
France
Prior art keywords
lamp
miner
electric
electric miner
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.)
Friemann and Wolf GmbH
Original Assignee
Friemann and Wolf GmbH
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 Friemann and Wolf GmbH filed Critical Friemann and Wolf GmbH
Application granted granted Critical
Publication of FR831107A publication Critical patent/FR831107A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/04—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a generator

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR831107D 1937-12-21 1937-12-21 Electric miner's lamp Expired FR831107A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR831107T 1937-12-21

Publications (1)

Publication Number Publication Date
FR831107A true FR831107A (en) 1938-08-23

Family

ID=9290462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR831107D Expired FR831107A (en) 1937-12-21 1937-12-21 Electric miner's lamp

Country Status (1)

Country Link
FR (1) FR831107A (en)

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