FR405325A - Improved process for treating metal filaments of electric incandescent lamps - Google Patents

Improved process for treating metal filaments of electric incandescent lamps

Info

Publication number
FR405325A
FR405325A FR405325DA FR405325A FR 405325 A FR405325 A FR 405325A FR 405325D A FR405325D A FR 405325DA FR 405325 A FR405325 A FR 405325A
Authority
FR
France
Prior art keywords
improved process
incandescent lamps
metal filaments
treating metal
electric incandescent
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.)
Bergmann Elektricitaets Werke AG
Original Assignee
Bergmann Elektricitaets Werke 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 Bergmann Elektricitaets Werke AG filed Critical Bergmann Elektricitaets Werke AG
Application granted granted Critical
Publication of FR405325A publication Critical patent/FR405325A/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)
FR405325D 1909-04-20 1909-07-22 Improved process for treating metal filaments of electric incandescent lamps Expired FR405325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US405325XA 1909-04-20 1909-04-20

Publications (1)

Publication Number Publication Date
FR405325A true FR405325A (en) 1909-12-27

Family

ID=1449813

Family Applications (1)

Application Number Title Priority Date Filing Date
FR405325D Expired FR405325A (en) 1909-04-20 1909-07-22 Improved process for treating metal filaments of electric incandescent lamps

Country Status (1)

Country Link
FR (1) FR405325A (en)

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