FR407976A - Multiple focus incandescent electric lamp - Google Patents

Multiple focus incandescent electric lamp

Info

Publication number
FR407976A
FR407976A FR407976A FR407976DA FR407976A FR 407976 A FR407976 A FR 407976A FR 407976 A FR407976 A FR 407976A FR 407976D A FR407976D A FR 407976DA FR 407976 A FR407976 A FR 407976A
Authority
FR
France
Prior art keywords
electric lamp
multiple focus
incandescent electric
incandescent
focus
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
FR407976A
Other languages
French (fr)
Inventor
Constantin Carangelo
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR407976A publication Critical patent/FR407976A/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
FR407976A 1909-09-18 Multiple focus incandescent electric lamp Expired FR407976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR407976T

Publications (1)

Publication Number Publication Date
FR407976A true FR407976A (en) 1910-03-15

Family

ID=8897393

Family Applications (2)

Application Number Title Priority Date Filing Date
FR11631A Expired FR11631E (en) Multiple focus incandescent electric lamp
FR407976A Expired FR407976A (en) 1909-09-18 Multiple focus incandescent electric lamp

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR11631A Expired FR11631E (en) Multiple focus incandescent electric lamp

Country Status (1)

Country Link
FR (2) FR407976A (en)

Also Published As

Publication number Publication date
FR11631E (en) 1910-03-30

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