FR741836A - - Google Patents

Info

Publication number
FR741836A
FR741836A FR741836DA FR741836A FR 741836 A FR741836 A FR 741836A FR 741836D A FR741836D A FR 741836DA FR 741836 A FR741836 A FR 741836A
Authority
FR
France
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)
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.)
Publication date
Application granted granted Critical
Publication of FR741836A publication Critical patent/FR741836A/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/12Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
FR741836D 1931-07-13 Expired FR741836A (US06521211-20030218-C00004.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE404341X 1931-07-13

Publications (1)

Publication Number Publication Date
FR741836A true FR741836A (US06521211-20030218-C00004.png) 1933-02-21

Family

ID=6421775

Family Applications (1)

Application Number Title Priority Date Filing Date
FR741836D Expired FR741836A (US06521211-20030218-C00004.png) 1931-07-13

Country Status (3)

Country Link
FR (1) FR741836A (US06521211-20030218-C00004.png)
GB (1) GB404341A (US06521211-20030218-C00004.png)
NL (1) NL36756C (US06521211-20030218-C00004.png)

Also Published As

Publication number Publication date
NL36756C (US06521211-20030218-C00004.png)
GB404341A (en) 1934-01-15

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