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FR482720A - Perfectionnements aux lampes à incandescence - Google Patents

Perfectionnements aux lampes à incandescence

Info

Publication number
FR482720A
FR482720A FR482720A FR482720DA FR482720A FR 482720 A FR482720 A FR 482720A FR 482720 A FR482720 A FR 482720A FR 482720D A FR482720D A FR 482720DA FR 482720 A FR482720 A FR 482720A
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
FR482720A
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 FR482720A publication Critical patent/FR482720A/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
    • 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
FR482720A 1913-09-08 1914-08-22 Perfectionnements aux lampes à incandescence Expired FR482720A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191401252XA 1913-09-08 1913-09-08

Publications (1)

Publication Number Publication Date
FR482720A true FR482720A (fr) 1917-04-20

Family

ID=32597389

Family Applications (2)

Application Number Title Priority Date Filing Date
FR462513A Expired FR462513A (fr) 1913-09-08 1913-09-13 Lampe à incandescence à filament de tungstène
FR482720A Expired FR482720A (fr) 1913-09-08 1914-08-22 Perfectionnements aux lampes à incandescence

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR462513A Expired FR462513A (fr) 1913-09-08 1913-09-13 Lampe à incandescence à filament de tungstène

Country Status (4)

Country Link
DE (3) DE273963C (fr)
FR (2) FR462513A (fr)
GB (1) GB191401252A (fr)
NL (1) NL1842C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931214A (en) * 1984-10-05 1990-06-05 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. Oxidic bodies with ionic and electronic conductivity

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234332A1 (de) * 1992-10-12 1994-04-14 Heidelberger Druckmasch Ag Aufspannvorrichtung zum Befestigen einer biegsamen Druckform auf der Mantelfläche eines Zylinders

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931214A (en) * 1984-10-05 1990-06-05 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. Oxidic bodies with ionic and electronic conductivity

Also Published As

Publication number Publication date
FR462513A (fr) 1914-01-29
NL1842C (fr)
DE290626C (fr)
DE273963C (fr)
DE292567C (fr)
GB191401252A (en) 1914-08-27

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