FR695303A - Improvements to incandescent electric lamps and their method of manufacture - Google Patents

Improvements to incandescent electric lamps and their method of manufacture

Info

Publication number
FR695303A
FR695303A FR695303DA FR695303A FR 695303 A FR695303 A FR 695303A FR 695303D A FR695303D A FR 695303DA FR 695303 A FR695303 A FR 695303A
Authority
FR
France
Prior art keywords
manufacture
electric lamps
incandescent electric
incandescent
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
Hjalmar Emanuel Sundberg
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 FR695303A publication Critical patent/FR695303A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H01K1/325—Reflecting coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
FR695303D 1929-05-10 1930-05-08 Improvements to incandescent electric lamps and their method of manufacture Expired FR695303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE360889X 1929-05-10

Publications (1)

Publication Number Publication Date
FR695303A true FR695303A (en) 1930-12-13

Family

ID=20308918

Family Applications (1)

Application Number Title Priority Date Filing Date
FR695303D Expired FR695303A (en) 1929-05-10 1930-05-08 Improvements to incandescent electric lamps and their method of manufacture

Country Status (2)

Country Link
FR (1) FR695303A (en)
GB (1) GB360889A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465314A1 (en) * 1979-09-17 1981-03-20 Technicon Instr INFRARED BEAM EMIT LAMP

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090134793A1 (en) * 2007-11-28 2009-05-28 Cseh Geza Z Ir reflecting grating for halogen lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465314A1 (en) * 1979-09-17 1981-03-20 Technicon Instr INFRARED BEAM EMIT LAMP

Also Published As

Publication number Publication date
GB360889A (en) 1931-11-11

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