FR508733A - Process for the manufacture of tungsten incandescent lamps - Google Patents

Process for the manufacture of tungsten incandescent lamps

Info

Publication number
FR508733A
FR508733A FR508733A FR508733DA FR508733A FR 508733 A FR508733 A FR 508733A FR 508733 A FR508733 A FR 508733A FR 508733D A FR508733D A FR 508733DA FR 508733 A FR508733 A FR 508733A
Authority
FR
France
Prior art keywords
manufacture
incandescent lamps
tungsten incandescent
tungsten
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
FR508733A
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Application granted granted Critical
Publication of FR508733A publication Critical patent/FR508733A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/04—Incandescent bodies characterised by the material thereof
FR508733A 1919-02-17 1920-01-19 Process for the manufacture of tungsten incandescent lamps Expired FR508733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE349276T 1919-02-17

Publications (1)

Publication Number Publication Date
FR508733A true FR508733A (en) 1920-10-21

Family

ID=33304728

Family Applications (1)

Application Number Title Priority Date Filing Date
FR508733A Expired FR508733A (en) 1919-02-17 1920-01-19 Process for the manufacture of tungsten incandescent lamps

Country Status (4)

Country Link
DE (1) DE349276C (en)
FR (1) FR508733A (en)
GB (1) GB139161A (en)
NL (1) NL5729C (en)

Also Published As

Publication number Publication date
GB139161A (en) 1920-10-14
NL5729C (en) 1921-05-17
DE349276C (en) 1922-02-25

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