FR428790A - Improvements in the manufacture of metallic filaments for incandescent lamps - Google Patents

Improvements in the manufacture of metallic filaments for incandescent lamps

Info

Publication number
FR428790A
FR428790A FR428790DA FR428790A FR 428790 A FR428790 A FR 428790A FR 428790D A FR428790D A FR 428790DA FR 428790 A FR428790 A FR 428790A
Authority
FR
France
Prior art keywords
manufacture
incandescent lamps
metallic filaments
filaments
metallic
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)
Inventor
Wilhelm Heinrich
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR428790A publication Critical patent/FR428790A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR428790D 1911-03-25 1911-03-25 Improvements in the manufacture of metallic filaments for incandescent lamps Expired FR428790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR428790T 1911-03-25

Publications (1)

Publication Number Publication Date
FR428790A true FR428790A (en) 1911-09-07

Family

ID=1471157

Family Applications (1)

Application Number Title Priority Date Filing Date
FR428790D Expired FR428790A (en) 1911-03-25 1911-03-25 Improvements in the manufacture of metallic filaments for incandescent lamps

Country Status (1)

Country Link
FR (1) FR428790A (en)

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