FR720985A - Incandescent electric lamp with gaseous atmosphere - Google Patents

Incandescent electric lamp with gaseous atmosphere

Info

Publication number
FR720985A
FR720985A FR720985DA FR720985A FR 720985 A FR720985 A FR 720985A FR 720985D A FR720985D A FR 720985DA FR 720985 A FR720985 A FR 720985A
Authority
FR
France
Prior art keywords
electric lamp
gaseous atmosphere
incandescent electric
incandescent
gaseous
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.)
VER GIUHLAMPEN und ELECTRICITA
Original Assignee
VER GIUHLAMPEN und ELECTRICITA
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 VER GIUHLAMPEN und ELECTRICITA filed Critical VER GIUHLAMPEN und ELECTRICITA
Application granted granted Critical
Publication of FR720985A publication Critical patent/FR720985A/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
FR720985D 1930-08-08 1931-08-03 Incandescent electric lamp with gaseous atmosphere Expired FR720985A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT359749X 1930-08-08

Publications (1)

Publication Number Publication Date
FR720985A true FR720985A (en) 1932-02-26

Family

ID=3672723

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720985D Expired FR720985A (en) 1930-08-08 1931-08-03 Incandescent electric lamp with gaseous atmosphere

Country Status (5)

Country Link
BE (1) BE381382A (en)
FR (1) FR720985A (en)
GB (1) GB359749A (en)
HU (1) HU103551A (en)
NL (1) NL32014C (en)

Also Published As

Publication number Publication date
NL32014C (en)
GB359749A (en) 1931-10-29
HU103551A (en)
BE381382A (en)

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