FR805642A - Improvements to electric lamps - Google Patents

Improvements to electric lamps

Info

Publication number
FR805642A
FR805642A FR805642DA FR805642A FR 805642 A FR805642 A FR 805642A FR 805642D A FR805642D A FR 805642DA FR 805642 A FR805642 A FR 805642A
Authority
FR
France
Prior art keywords
electric lamps
lamps
electric
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
Ambroise Joseph Marie Ja Bazin
Charles Louis Roland-Gosselin
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 filed Critical
Application granted granted Critical
Publication of FR805642A publication Critical patent/FR805642A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
FR805642D 1935-08-14 1935-08-14 Improvements to electric lamps Expired FR805642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR805642T 1935-08-14

Publications (1)

Publication Number Publication Date
FR805642A true FR805642A (en) 1936-11-25

Family

ID=9251440

Family Applications (1)

Application Number Title Priority Date Filing Date
FR805642D Expired FR805642A (en) 1935-08-14 1935-08-14 Improvements to electric lamps

Country Status (1)

Country Link
FR (1) FR805642A (en)

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