FR482720A - Incandescent lamp improvements - Google Patents

Incandescent lamp improvements

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
French (fr)
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/en
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 Incandescent lamp improvements Expired FR482720A (en)

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 (en) 1917-04-20

Family

ID=32597389

Family Applications (2)

Application Number Title Priority Date Filing Date
FR462513A Expired FR462513A (en) 1913-09-08 1913-09-13 Tungsten Filament Incandescent Lamp
FR482720A Expired FR482720A (en) 1913-09-08 1914-08-22 Incandescent lamp improvements

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR462513A Expired FR462513A (en) 1913-09-08 1913-09-13 Tungsten Filament Incandescent Lamp

Country Status (4)

Country Link
DE (3) DE292567C (en)
FR (2) FR462513A (en)
GB (1) GB191401252A (en)
NL (1) NL1842C (en)

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 (en) * 1992-10-12 1994-04-14 Heidelberger Druckmasch Ag Clamping device for attaching a flexible printing form to the outer surface of a cylinder

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
NL1842C (en)
GB191401252A (en) 1914-08-27
DE273963C (en)
DE292567C (en)
DE290626C (en)
FR462513A (en) 1914-01-29

Similar Documents

Publication Publication Date Title
FR458877A (en) Filaments of incandescent lamps
FR482720A (en) Incandescent lamp improvements
FR471379A (en) Incandescent lamp improvements
FR458876A (en) Incandescent lamp improvements
FR463093A (en) Incandescent lamp improvements
FR469368A (en) Incandescent lamp improvements
FR20104E (en) Incandescent lamp improvements
FR20377E (en) Incandescent lamp improvements
FR588948A (en) Incandescent lamp improvements
FR477955A (en) Incandescent lamp improvements
FR437735A (en) Incandescent lamps
FR434540A (en) Improvements to incandescent electric lamps
FR452472A (en) Incandescent lamp improvements
FR452473A (en) Incandescent lamp improvements
FR446934A (en) Incandescent lamp improvements
FR474519A (en) Improvements to incandescent electric lamps
FR470744A (en) Improvements relating to incandescent electric lamps
FR485079A (en) Incandescent lamp improvements
FR468533A (en) Improvements to incandescent electric lamps
FR467221A (en) Improvements to incandescent electric lamps
FR456414A (en) Improvements to incandescent electric lamps
FR453872A (en) Improvements to electric incandescent lamps
FR461340A (en) Lantern for incandescent lamps
FR18112E (en) Improvements to incandescent lamp bases
FR445947A (en) Improvements to incandescent lamp bases