FR474519A - Improvements to incandescent electric lamps - Google Patents

Improvements to incandescent electric lamps

Info

Publication number
FR474519A
FR474519A FR474519DA FR474519A FR 474519 A FR474519 A FR 474519A FR 474519D A FR474519D A FR 474519DA FR 474519 A FR474519 A FR 474519A
Authority
FR
France
Prior art keywords
electric lamps
incandescent electric
incandescent
lamps
electric
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
Gustave Weissmann
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 FR474519A publication Critical patent/FR474519A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
FR474519D 1913-12-06 1913-12-06 Improvements to incandescent electric lamps Expired FR474519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR474519T 1913-12-06

Publications (1)

Publication Number Publication Date
FR474519A true FR474519A (en) 1915-02-24

Family

ID=1512485

Family Applications (1)

Application Number Title Priority Date Filing Date
FR474519D Expired FR474519A (en) 1913-12-06 1913-12-06 Improvements to incandescent electric lamps

Country Status (1)

Country Link
FR (1) FR474519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999022551A1 (en) * 1997-10-27 1999-05-06 Heraeus Noblelight Gmbh Infra red spheroidal radiation emitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999022551A1 (en) * 1997-10-27 1999-05-06 Heraeus Noblelight Gmbh Infra red spheroidal radiation emitter

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