FR452472A - Perfectionnements aux lampes à incandescence - Google Patents

Perfectionnements aux lampes à incandescence

Info

Publication number
FR452472A
FR452472A FR452472A FR452472DA FR452472A FR 452472 A FR452472 A FR 452472A FR 452472 A FR452472 A FR 452472A FR 452472D A FR452472D A FR 452472DA FR 452472 A FR452472 A FR 452472A
Authority
FR
France
Prior art keywords
incandescent lamp
incandescent
lamp
lamp improvements
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
FR452472A
Other languages
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR452472A publication Critical patent/FR452472A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
FR452472A 1912-01-30 1912-12-28 Perfectionnements aux lampes à incandescence Expired FR452472A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191202468T 1912-01-30

Publications (1)

Publication Number Publication Date
FR452472A true FR452472A (fr) 1913-05-17

Family

ID=32569769

Family Applications (1)

Application Number Title Priority Date Filing Date
FR452472A Expired FR452472A (fr) 1912-01-30 1912-12-28 Perfectionnements aux lampes à incandescence

Country Status (2)

Country Link
FR (1) FR452472A (fr)
GB (1) GB191202468A (fr)

Also Published As

Publication number Publication date
GB191202468A (en) 1913-01-30

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