FR747606A - Electric lamp for headlights - Google Patents

Electric lamp for headlights

Info

Publication number
FR747606A
FR747606A FR747606DA FR747606A FR 747606 A FR747606 A FR 747606A FR 747606D A FR747606D A FR 747606DA FR 747606 A FR747606 A FR 747606A
Authority
FR
France
Prior art keywords
headlights
electric lamp
lamp
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
Friedrich Richard Dietrich
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 FR747606A publication Critical patent/FR747606A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H01K1/325—Reflecting coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
FR747606D 1932-07-28 1932-12-15 Electric lamp for headlights Expired FR747606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE743401X 1932-07-28

Publications (1)

Publication Number Publication Date
FR747606A true FR747606A (en) 1933-06-19

Family

ID=7750781

Family Applications (2)

Application Number Title Priority Date Filing Date
FR743401D Expired FR743401A (en) 1932-07-28 1932-09-28
FR747606D Expired FR747606A (en) 1932-07-28 1932-12-15 Electric lamp for headlights

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR743401D Expired FR743401A (en) 1932-07-28 1932-09-28

Country Status (3)

Country Link
US (1) US1947243A (en)
FR (2) FR743401A (en)
GB (2) GB416561A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671429A1 (en) * 1990-12-14 1992-07-10 Piaa Corp Bulb for motor vehicle headlight

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL89171C (en) * 1954-07-24
US3025424A (en) * 1958-06-16 1962-03-13 Gen Electric Electric lamp
DE1149453B (en) * 1960-10-13 1963-05-30 Rolf Mickley Two-filament incandescent lamp for dimmed high-beam and near-light in vehicle headlights
NL284072A (en) * 1961-10-09
US3697802A (en) * 1970-10-12 1972-10-10 Wagner Electric Corp Two-terminal, two-color indicator lamp assembly
US4644452A (en) * 1985-10-25 1987-02-17 Kasboske George C Vehicle headlamp with fog penetrating capability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671429A1 (en) * 1990-12-14 1992-07-10 Piaa Corp Bulb for motor vehicle headlight

Also Published As

Publication number Publication date
GB416561A (en) 1934-09-17
FR743401A (en) 1933-03-30
US1947243A (en) 1934-02-13
GB404222A (en) 1934-01-11

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