FR565317A - Incandescent lamp improvements - Google Patents

Incandescent lamp improvements

Info

Publication number
FR565317A
FR565317A FR565317DA FR565317A FR 565317 A FR565317 A FR 565317A FR 565317D A FR565317D A FR 565317DA FR 565317 A FR565317 A FR 565317A
Authority
FR
France
Prior art keywords
incandescent lamp
incandescent
lamp
lamp improvements
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)
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR565317A publication Critical patent/FR565317A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
FR565317D 1922-04-22 1923-04-21 Incandescent lamp improvements Expired FR565317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US556080A US1621360A (en) 1922-04-22 1922-04-22 Incandescent lamp

Publications (1)

Publication Number Publication Date
FR565317A true FR565317A (en) 1924-01-24

Family

ID=24219817

Family Applications (1)

Application Number Title Priority Date Filing Date
FR565317D Expired FR565317A (en) 1922-04-22 1923-04-21 Incandescent lamp improvements

Country Status (2)

Country Link
US (1) US1621360A (en)
FR (1) FR565317A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285621B (en) * 1959-03-26 1968-12-19 Duro Test Corp Electric light source with a translucent cover and a refractive wrapping and a method for applying this wrapping

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744209A (en) * 1952-07-14 1956-05-01 Bristol Steel & Iron Works Inc Headlight unit for motor vehicles
US2876375A (en) * 1953-08-26 1959-03-03 Westinghouse Electric Corp Filament shield
US4714857A (en) * 1986-04-21 1987-12-22 Duro-Test Corporation Infrared reflective lamp with envelope having straight sections
JP2006526257A (en) * 2003-05-12 2006-11-16 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Lamp for automobile headlight

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285621B (en) * 1959-03-26 1968-12-19 Duro Test Corp Electric light source with a translucent cover and a refractive wrapping and a method for applying this wrapping

Also Published As

Publication number Publication date
US1621360A (en) 1927-03-15

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