FR809975A - Double spiral luminous body for incandescent electric lamps - Google Patents

Double spiral luminous body for incandescent electric lamps

Info

Publication number
FR809975A
FR809975A FR809975DA FR809975A FR 809975 A FR809975 A FR 809975A FR 809975D A FR809975D A FR 809975DA FR 809975 A FR809975 A FR 809975A
Authority
FR
France
Prior art keywords
luminous body
double spiral
electric lamps
incandescent electric
spiral luminous
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
Walter Berger
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 FR809975A publication Critical patent/FR809975A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
FR809975D 1935-06-11 1936-06-11 Double spiral luminous body for incandescent electric lamps Expired FR809975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE476804X 1935-06-11

Publications (1)

Publication Number Publication Date
FR809975A true FR809975A (en) 1937-03-12

Family

ID=6542045

Family Applications (1)

Application Number Title Priority Date Filing Date
FR809975D Expired FR809975A (en) 1935-06-11 1936-06-11 Double spiral luminous body for incandescent electric lamps

Country Status (3)

Country Link
BE (1) BE416007A (en)
FR (1) FR809975A (en)
GB (1) GB476804A (en)

Also Published As

Publication number Publication date
BE416007A (en)
GB476804A (en) 1937-12-13

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