FR824594A - Improvements to electric lamps - Google Patents

Improvements to electric lamps

Info

Publication number
FR824594A
FR824594A FR824594DA FR824594A FR 824594 A FR824594 A FR 824594A FR 824594D A FR824594D A FR 824594DA FR 824594 A FR824594 A FR 824594A
Authority
FR
France
Prior art keywords
electric lamps
lamps
electric
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)
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 des Lampes
Original Assignee
Compagnie des Lampes
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 des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR824594A publication Critical patent/FR824594A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
    • 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
FR824594D 1936-07-29 1937-07-21 Improvements to electric lamps Expired FR824594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93236A US2100879A (en) 1936-07-29 1936-07-29 Electric lamp

Publications (1)

Publication Number Publication Date
FR824594A true FR824594A (en) 1938-02-11

Family

ID=22237867

Family Applications (1)

Application Number Title Priority Date Filing Date
FR824594D Expired FR824594A (en) 1936-07-29 1937-07-21 Improvements to electric lamps

Country Status (4)

Country Link
US (1) US2100879A (en)
FR (1) FR824594A (en)
GB (1) GB480511A (en)
NL (1) NL47365C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922510A (en) * 1956-05-18 1960-01-26 Kolman Mfg Company Screening plant
NL6607700A (en) * 1966-06-03 1967-12-04
NL6607701A (en) * 1966-06-03 1967-12-04
US3555338A (en) * 1967-03-10 1971-01-12 Sylvania Electric Prod Incandescent lamp

Also Published As

Publication number Publication date
NL47365C (en)
US2100879A (en) 1937-11-30
GB480511A (en) 1938-02-23

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