FR557098A - Perfectionnement aux lampes électriques - Google Patents

Perfectionnement aux lampes électriques

Info

Publication number
FR557098A
FR557098A FR557098DA FR557098A FR 557098 A FR557098 A FR 557098A FR 557098D A FR557098D A FR 557098DA FR 557098 A FR557098 A FR 557098A
Authority
FR
France
Prior art keywords
improvement
electric lamps
lamps
electric
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
Hector-Henri-Noel Grandjean
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 filed Critical
Application granted granted Critical
Publication of FR557098A publication Critical patent/FR557098A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/97—Holders with separate means to prevent loosening of the coupling or unauthorised removal of apparatus held
    • H01R33/973—Holders with separate means to prevent loosening of the coupling or unauthorised removal of apparatus held for bayonet type coupling devices
FR557098D 1922-01-30 1922-01-30 Perfectionnement aux lampes électriques Expired FR557098A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR557098T 1922-01-30

Publications (1)

Publication Number Publication Date
FR557098A true FR557098A (fr) 1923-08-02

Family

ID=8940620

Family Applications (1)

Application Number Title Priority Date Filing Date
FR557098D Expired FR557098A (fr) 1922-01-30 1922-01-30 Perfectionnement aux lampes électriques

Country Status (1)

Country Link
FR (1) FR557098A (fr)

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