FR651291A - Incandescent lamp improvements - Google Patents

Incandescent lamp improvements

Info

Publication number
FR651291A
FR651291A FR651291DA FR651291A FR 651291 A FR651291 A FR 651291A FR 651291D A FR651291D A FR 651291DA FR 651291 A FR651291 A FR 651291A
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)
Inventor
E Sylvain Sarko
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.)
COMPTOIR FRANCO ANGLAIS D EXPO
Original Assignee
COMPTOIR FRANCO ANGLAIS D EXPO
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 COMPTOIR FRANCO ANGLAIS D EXPO filed Critical COMPTOIR FRANCO ANGLAIS D EXPO
Application granted granted Critical
Publication of FR651291A publication Critical patent/FR651291A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
FR651291D 1928-01-10 1928-01-10 Incandescent lamp improvements Expired FR651291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR651291T 1928-01-10

Publications (1)

Publication Number Publication Date
FR651291A true FR651291A (en) 1929-02-16

Family

ID=9004519

Family Applications (1)

Application Number Title Priority Date Filing Date
FR651291D Expired FR651291A (en) 1928-01-10 1928-01-10 Incandescent lamp improvements

Country Status (1)

Country Link
FR (1) FR651291A (en)

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