FR420891A - Process for the manufacture of filaments for incandescent electric lamps, by the use of an auxiliary metal - Google Patents

Process for the manufacture of filaments for incandescent electric lamps, by the use of an auxiliary metal

Info

Publication number
FR420891A
FR420891A FR420891DA FR420891A FR 420891 A FR420891 A FR 420891A FR 420891D A FR420891D A FR 420891DA FR 420891 A FR420891 A FR 420891A
Authority
FR
France
Prior art keywords
filaments
manufacture
auxiliary metal
electric lamps
incandescent 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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR420891A publication Critical patent/FR420891A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies
FR420891D 1909-11-29 1910-09-29 Process for the manufacture of filaments for incandescent electric lamps, by the use of an auxiliary metal Expired FR420891A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE420891X 1909-11-29

Publications (1)

Publication Number Publication Date
FR420891A true FR420891A (en) 1911-02-09

Family

ID=1463985

Family Applications (1)

Application Number Title Priority Date Filing Date
FR420891D Expired FR420891A (en) 1909-11-29 1910-09-29 Process for the manufacture of filaments for incandescent electric lamps, by the use of an auxiliary metal

Country Status (1)

Country Link
FR (1) FR420891A (en)

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