FR564190A - Semi-direct light incandescent lamp - Google Patents

Semi-direct light incandescent lamp

Info

Publication number
FR564190A
FR564190A FR564190DA FR564190A FR 564190 A FR564190 A FR 564190A FR 564190D A FR564190D A FR 564190DA FR 564190 A FR564190 A FR 564190A
Authority
FR
France
Prior art keywords
semi
direct light
incandescent lamp
light incandescent
lamp
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
Joseph Mersing
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 FR564190A publication Critical patent/FR564190A/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
FR564190D 1923-03-21 1923-03-21 Semi-direct light incandescent lamp Expired FR564190A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR564190T 1923-03-21

Publications (1)

Publication Number Publication Date
FR564190A true FR564190A (en) 1923-12-22

Family

ID=8945586

Family Applications (1)

Application Number Title Priority Date Filing Date
FR564190D Expired FR564190A (en) 1923-03-21 1923-03-21 Semi-direct light incandescent lamp

Country Status (1)

Country Link
FR (1) FR564190A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504313A1 (en) * 1981-04-16 1982-10-22 Philips Nv ELECTRIC REFLECTOR LAMP

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504313A1 (en) * 1981-04-16 1982-10-22 Philips Nv ELECTRIC REFLECTOR LAMP

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