FR385392A - Method and device for increasing the service life of electric incandescent lamps - Google Patents

Method and device for increasing the service life of electric incandescent lamps

Info

Publication number
FR385392A
FR385392A FR385392DA FR385392A FR 385392 A FR385392 A FR 385392A FR 385392D A FR385392D A FR 385392DA FR 385392 A FR385392 A FR 385392A
Authority
FR
France
Prior art keywords
increasing
service life
incandescent lamps
electric incandescent
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
French (fr)
Inventor
Wilhelm Herrmann
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 FR385392A publication Critical patent/FR385392A/en
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
    • H01R33/94—Holders formed as intermediate parts for linking a counter-part to a coupling part
FR385392D 1907-12-20 1907-12-20 Method and device for increasing the service life of electric incandescent lamps Expired FR385392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR385392T 1907-12-20

Publications (1)

Publication Number Publication Date
FR385392A true FR385392A (en) 1908-05-09

Family

ID=1431274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR385392D Expired FR385392A (en) 1907-12-20 1907-12-20 Method and device for increasing the service life of electric incandescent lamps

Country Status (1)

Country Link
FR (1) FR385392A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556141A1 (en) * 1983-12-06 1985-06-07 Malbe Michel Electrical-socket extension piece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556141A1 (en) * 1983-12-06 1985-06-07 Malbe Michel Electrical-socket extension piece

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