FR757340A - Improvements to incandescent electric lamps - Google Patents

Improvements to incandescent electric lamps

Info

Publication number
FR757340A
FR757340A FR757340DA FR757340A FR 757340 A FR757340 A FR 757340A FR 757340D A FR757340D A FR 757340DA FR 757340 A FR757340 A FR 757340A
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
Stephen Grebel
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 filed Critical
Application granted granted Critical
Publication of FR757340A publication Critical patent/FR757340A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
FR757340D 1933-06-21 1933-06-21 Improvements to incandescent electric lamps Expired FR757340A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR757340T 1933-06-21
GB18153/34A GB444560A (en) 1933-06-21 1934-06-19 Improvements in electric incandescent lamps

Publications (1)

Publication Number Publication Date
FR757340A true FR757340A (en) 1933-12-22

Family

ID=10107539

Family Applications (1)

Application Number Title Priority Date Filing Date
FR757340D Expired FR757340A (en) 1933-06-21 1933-06-21 Improvements to incandescent electric lamps

Country Status (2)

Country Link
FR (1) FR757340A (en)
GB (1) GB444560A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6744187B1 (en) * 2001-12-05 2004-06-01 Randal L. Wimberly Lamp assembly with internal reflector
US8267547B2 (en) 2009-06-24 2012-09-18 Cunningham David W Incandescent illumination system incorporating an infrared-reflective shroud

Also Published As

Publication number Publication date
GB444560A (en) 1936-03-18

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