FR457401A - Process for the manufacture of wick coals for electric arc lamps - Google Patents

Process for the manufacture of wick coals for electric arc lamps

Info

Publication number
FR457401A
FR457401A FR457401DA FR457401A FR 457401 A FR457401 A FR 457401A FR 457401D A FR457401D A FR 457401DA FR 457401 A FR457401 A FR 457401A
Authority
FR
France
Prior art keywords
coals
wick
manufacture
electric arc
arc 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)
Inventor
Josef Roubal
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 FR457401A publication Critical patent/FR457401A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00Electric arc lamps
    • H05B31/02Details
    • H05B31/06Electrodes
    • H05B31/065Electrodes for flame arc lamps
FR457401D 1913-05-02 1913-05-02 Process for the manufacture of wick coals for electric arc lamps Expired FR457401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR457401T 1913-05-02

Publications (1)

Publication Number Publication Date
FR457401A true FR457401A (en) 1913-09-17

Family

ID=1497095

Family Applications (1)

Application Number Title Priority Date Filing Date
FR457401D Expired FR457401A (en) 1913-05-02 1913-05-02 Process for the manufacture of wick coals for electric arc lamps

Country Status (1)

Country Link
FR (1) FR457401A (en)

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