FR833471A - Improvements to electric lamps - Google Patents

Improvements to electric lamps

Info

Publication number
FR833471A
FR833471A FR833471DA FR833471A FR 833471 A FR833471 A FR 833471A FR 833471D A FR833471D A FR 833471DA FR 833471 A FR833471 A FR 833471A
Authority
FR
France
Prior art keywords
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
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.)
BIRDSEYE ELECTRIC CORP
Original Assignee
BIRDSEYE ELECTRIC CORP
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 BIRDSEYE ELECTRIC CORP filed Critical BIRDSEYE ELECTRIC CORP
Application granted granted Critical
Publication of FR833471A publication Critical patent/FR833471A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
FR833471D 1937-10-06 1938-02-10 Improvements to electric lamps Expired FR833471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US167575A US2144438A (en) 1937-10-06 1937-10-06 Tubular incandescent electric lamp

Publications (1)

Publication Number Publication Date
FR833471A true FR833471A (en) 1938-10-21

Family

ID=22607918

Family Applications (1)

Application Number Title Priority Date Filing Date
FR833471D Expired FR833471A (en) 1937-10-06 1938-02-10 Improvements to electric lamps

Country Status (2)

Country Link
US (1) US2144438A (en)
FR (1) FR833471A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE536105A (en) * 1954-03-02
US2979634A (en) * 1957-12-09 1961-04-11 Sylvania Electric Prod Projection lamp
US2994799A (en) * 1957-12-09 1961-08-01 Sylvania Electric Prod Projection lamp
NL126154C (en) * 1958-02-13
US3281620A (en) * 1962-05-16 1966-10-25 Miller Robert Keith Adjustably positionable reflector lamp
US3513347A (en) * 1967-08-24 1970-05-19 Westinghouse Electric Corp Prefocused filament-mount structure for sealed-beam type incandescent lamp and method of manufacture
US3536946A (en) * 1967-12-07 1970-10-27 Sylvania Electric Prod Temperature-resistant reflective coating for quartz envelope

Also Published As

Publication number Publication date
US2144438A (en) 1939-01-17

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