FR722327A - Electric lamps and their manufacturing process - Google Patents

Electric lamps and their manufacturing process

Info

Publication number
FR722327A
FR722327A FR722327DA FR722327A FR 722327 A FR722327 A FR 722327A FR 722327D A FR722327D A FR 722327DA FR 722327 A FR722327 A FR 722327A
Authority
FR
France
Prior art keywords
manufacturing process
electric lamps
lamps
electric
manufacturing
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
Georges Main
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 FR722327A publication Critical patent/FR722327A/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
FR722327D 1930-11-26 1930-11-26 Electric lamps and their manufacturing process Expired FR722327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR722327T 1930-11-26

Publications (1)

Publication Number Publication Date
FR722327A true FR722327A (en) 1932-03-15

Family

ID=9100936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR722327D Expired FR722327A (en) 1930-11-26 1930-11-26 Electric lamps and their manufacturing process

Country Status (1)

Country Link
FR (1) FR722327A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901655A (en) * 1955-11-10 1959-08-25 Gen Electric Reflecting electric lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901655A (en) * 1955-11-10 1959-08-25 Gen Electric Reflecting electric lamp

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