FR647539A - Lampe de mine à verrouillage mécanique - Google Patents

Lampe de mine à verrouillage mécanique

Info

Publication number
FR647539A
FR647539A FR647539DA FR647539A FR 647539 A FR647539 A FR 647539A FR 647539D A FR647539D A FR 647539DA FR 647539 A FR647539 A FR 647539A
Authority
FR
France
Prior art keywords
mechanical locking
mine lamp
locking mine
lamp
mechanical
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.)
TELEPHONES LE LAS
Original Assignee
TELEPHONES LE LAS
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 TELEPHONES LE LAS filed Critical TELEPHONES LE LAS
Application granted granted Critical
Publication of FR647539A publication Critical patent/FR647539A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR647539D 1923-01-20 1923-01-20 Lampe de mine à verrouillage mécanique Expired FR647539A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR647539T 1923-01-20

Publications (1)

Publication Number Publication Date
FR647539A true FR647539A (fr) 1928-11-26

Family

ID=9002151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR647539D Expired FR647539A (fr) 1923-01-20 1923-01-20 Lampe de mine à verrouillage mécanique

Country Status (1)

Country Link
FR (1) FR647539A (fr)

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