FR451821A - Lampe électrique de mines - Google Patents

Lampe électrique de mines

Info

Publication number
FR451821A
FR451821A FR451821DA FR451821A FR 451821 A FR451821 A FR 451821A FR 451821D A FR451821D A FR 451821DA FR 451821 A FR451821 A FR 451821A
Authority
FR
France
Prior art keywords
mine lamp
electric mine
electric
lamp
mine
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)
Inventor
Hubert Joris
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR451821A publication Critical patent/FR451821A/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
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR451821D 1912-11-28 1912-12-12 Lampe électrique de mines Expired FR451821A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE451821X 1912-11-28

Publications (1)

Publication Number Publication Date
FR451821A true FR451821A (fr) 1913-04-29

Family

ID=1492109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR451821D Expired FR451821A (fr) 1912-11-28 1912-12-12 Lampe électrique de mines

Country Status (1)

Country Link
FR (1) FR451821A (fr)

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