FR553839A - Douille assurée contre le vol de la lampe - Google Patents

Douille assurée contre le vol de la lampe

Info

Publication number
FR553839A
FR553839A FR553839DA FR553839A FR 553839 A FR553839 A FR 553839A FR 553839D A FR553839D A FR 553839DA FR 553839 A FR553839 A FR 553839A
Authority
FR
France
Prior art keywords
socket
lamp
against theft
insured against
insured
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
Heinrich Voortmann
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 FR553839A publication Critical patent/FR553839A/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
    • H01R33/971—Holders with separate means to prevent loosening of the coupling or unauthorised removal of apparatus held for screw type coupling devices
FR553839D 1921-06-27 1922-06-26 Douille assurée contre le vol de la lampe Expired FR553839A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE553839X 1921-06-27

Publications (1)

Publication Number Publication Date
FR553839A true FR553839A (fr) 1923-05-31

Family

ID=6563881

Family Applications (1)

Application Number Title Priority Date Filing Date
FR553839D Expired FR553839A (fr) 1921-06-27 1922-06-26 Douille assurée contre le vol de la lampe

Country Status (1)

Country Link
FR (1) FR553839A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749918C (de) * 1940-12-04 1944-12-08 Fassung zur Aufnahme von elektrischen Entladungsroehren mit einem profilierten Fuehrungsstift

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749918C (de) * 1940-12-04 1944-12-08 Fassung zur Aufnahme von elektrischen Entladungsroehren mit einem profilierten Fuehrungsstift

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