FR825088A - Perfectionnements aux lampes à incandescence - Google Patents

Perfectionnements aux lampes à incandescence

Info

Publication number
FR825088A
FR825088A FR825088DA FR825088A FR 825088 A FR825088 A FR 825088A FR 825088D A FR825088D A FR 825088DA FR 825088 A FR825088 A FR 825088A
Authority
FR
France
Prior art keywords
incandescent lamp
incandescent
lamp
lamp improvements
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
English (en)
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.)
BIRDSEYE ELECTRIC CORP
Original Assignee
BIRDSEYE ELECTRIC CORP
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 BIRDSEYE ELECTRIC CORP filed Critical BIRDSEYE ELECTRIC CORP
Application granted granted Critical
Publication of FR825088A publication Critical patent/FR825088A/fr
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
FR825088D 1936-08-07 1937-07-31 Perfectionnements aux lampes à incandescence Expired FR825088A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US94760A US2074888A (en) 1936-08-07 1936-08-07 Luminous reflecting lamp

Publications (1)

Publication Number Publication Date
FR825088A true FR825088A (fr) 1938-02-23

Family

ID=22247019

Family Applications (1)

Application Number Title Priority Date Filing Date
FR825088D Expired FR825088A (fr) 1936-08-07 1937-07-31 Perfectionnements aux lampes à incandescence

Country Status (4)

Country Link
US (1) US2074888A (fr)
DE (1) DE686470C (fr)
FR (1) FR825088A (fr)
GB (1) GB492554A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215883A (en) * 1960-08-10 1965-11-02 John V Mcclees Photographic lamp
US4638208A (en) * 1985-09-25 1987-01-20 General Electric Company Sandblasted incandescent lamps with an improved neck section
DE3633203A1 (de) * 1986-09-30 1988-03-31 Siemens Ag Lichtemissionsdioden (led) - anzeigevorrichtung
US20040136039A1 (en) * 1998-01-16 2004-07-15 Odhner Jefferson E. Active and passive holographic optical based curved surface elements
US20040080272A1 (en) * 2002-10-29 2004-04-29 Pan Wun Fang Dazzling lighting lamp

Also Published As

Publication number Publication date
GB492554A (en) 1938-09-22
DE686470C (de) 1940-01-10
US2074888A (en) 1937-03-23

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