FR664322A - Improvements in the manufacture of incandescent lamps - Google Patents

Improvements in the manufacture of incandescent lamps

Info

Publication number
FR664322A
FR664322A FR664322DA FR664322A FR 664322 A FR664322 A FR 664322A FR 664322D A FR664322D A FR 664322DA FR 664322 A FR664322 A FR 664322A
Authority
FR
France
Prior art keywords
manufacture
incandescent lamps
incandescent
lamps
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.)
Radiotechnique SA
Original Assignee
Radiotechnique 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 Radiotechnique SA filed Critical Radiotechnique SA
Application granted granted Critical
Publication of FR664322A publication Critical patent/FR664322A/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
    • 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
FR664322D 1928-02-29 1928-02-29 Improvements in the manufacture of incandescent lamps Expired FR664322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR664322T 1928-02-29

Publications (1)

Publication Number Publication Date
FR664322A true FR664322A (en) 1929-09-02

Family

ID=9012580

Family Applications (1)

Application Number Title Priority Date Filing Date
FR664322D Expired FR664322A (en) 1928-02-29 1928-02-29 Improvements in the manufacture of incandescent lamps

Country Status (1)

Country Link
FR (1) FR664322A (en)

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