FR392500A - Filament decarburization process for metal filament electric lamps - Google Patents

Filament decarburization process for metal filament electric lamps

Info

Publication number
FR392500A
FR392500A FR392500DA FR392500A FR 392500 A FR392500 A FR 392500A FR 392500D A FR392500D A FR 392500DA FR 392500 A FR392500 A FR 392500A
Authority
FR
France
Prior art keywords
filament
electric lamps
decarburization process
metal
metal filament
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.)
"corona" Gluehlampenfabrik G M B H
Original Assignee
"corona" Gluehlampenfabrik G M B H
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 "corona" Gluehlampenfabrik G M B H filed Critical "corona" Gluehlampenfabrik G M B H
Application granted granted Critical
Publication of FR392500A publication Critical patent/FR392500A/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)
FR392500D 1908-07-20 1908-07-20 Filament decarburization process for metal filament electric lamps Expired FR392500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR392500T 1908-07-20

Publications (1)

Publication Number Publication Date
FR392500A true FR392500A (en) 1908-11-27

Family

ID=1437870

Family Applications (1)

Application Number Title Priority Date Filing Date
FR392500D Expired FR392500A (en) 1908-07-20 1908-07-20 Filament decarburization process for metal filament electric lamps

Country Status (1)

Country Link
FR (1) FR392500A (en)

Similar Documents

Publication Publication Date Title
FR392500A (en) Filament decarburization process for metal filament electric lamps
FR412443A (en) Process for decarbonizing metal filaments for incandescent electric lamps
FR388161A (en) Process for the production of filaments of metal alloys for electric incandescent lamps
FR394829A (en) Process for mending the metal filaments of incandescent lamps
FR13351E (en) Process for decarburizing metal filaments for incandescent electric lamps
FR412048A (en) Process for decarburizing metal filaments for incandescent electric lamps
FR394302A (en) Process for the manufacture of filaments of electric incandescent lamps
FR405324A (en) Process for processing tungsten metal filaments for incandescent electric lamps
FR13347E (en) Process for decarbonizing metal filaments for incandescent electric lamps
FR12119E (en) Method for preventing the metallic filaments of electric incandescent lamps from volatilizing
FR406981A (en) Manufacturing process of metal filaments for incandescent electric lamps
FR392501A (en) Manufacturing process of metal filaments for electric lamps
CH43542A (en) Process for the calcination of filaments for incandescent electric lamps
FR394823A (en) Method for preventing the metallic filaments of electric incandescent lamps from volatilizing
FR392455A (en) Method of forming metal filaments for electric incandescent lamps
FR383822A (en) Process for the manufacture of filaments for incandescent electric lamps
FR382898A (en) Process for the manufacture of filaments for incandescent electric lamps
FR378917A (en) Process for the manufacture of filaments for electric lamps using hardly fusible metals
FR398247A (en) Process for the production of flat metal filaments for incandescent lamps
FR391722A (en) Manufacturing process of filaments for incandescent electric lamps
FR382257A (en) Process for the manufacture of filaments of poorly fusible metals drawn into wires for electric incandescent lamps
FR377846A (en) Process for the manufacture of filaments of incandescent electric lamps made of tungsten or an alloy of this metal
FR393888A (en) Metal filaments for electric incandescent lamps
FR420891A (en) Process for the manufacture of filaments for incandescent electric lamps, by the use of an auxiliary metal
FR384414A (en) Process for manufacturing filament wires for electric lamps with hardly fusible metals or metal oxides