FR446870A - Electric projection lamp - Google Patents

Electric projection lamp

Info

Publication number
FR446870A
FR446870A FR446870A FR446870DA FR446870A FR 446870 A FR446870 A FR 446870A FR 446870 A FR446870 A FR 446870A FR 446870D A FR446870D A FR 446870DA FR 446870 A FR446870 A FR 446870A
Authority
FR
France
Prior art keywords
projection lamp
electric projection
electric
lamp
projection
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
FR446870A
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.)
CIE GENERALE DE PHONOGRAPHES
Original Assignee
CIE GENERALE DE PHONOGRAPHES
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 CIE GENERALE DE PHONOGRAPHES filed Critical CIE GENERALE DE PHONOGRAPHES
Application granted granted Critical
Publication of FR446870A publication Critical patent/FR446870A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H01K1/325—Reflecting coating
FR446870A 1911-10-12 1911-10-12 Electric projection lamp Expired FR446870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR191220659X 1911-10-12

Publications (1)

Publication Number Publication Date
FR446870A true FR446870A (en) 1912-12-17

Family

ID=32339787

Family Applications (1)

Application Number Title Priority Date Filing Date
FR446870A Expired FR446870A (en) 1911-10-12 1911-10-12 Electric projection lamp

Country Status (2)

Country Link
FR (1) FR446870A (en)
GB (1) GB191220659A (en)

Also Published As

Publication number Publication date
GB191220659A (en)

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