FR830241A - Improvements to incandescent electric lamps - Google Patents
Improvements to incandescent electric lampsInfo
- Publication number
- FR830241A FR830241A FR830241DA FR830241A FR 830241 A FR830241 A FR 830241A FR 830241D A FR830241D A FR 830241DA FR 830241 A FR830241 A FR 830241A
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/18—Mountings or supports for the incandescent body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US114166A US2117039A (en) | 1936-12-04 | 1936-12-04 | Reflecting incandescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
FR830241A true FR830241A (en) | 1938-07-25 |
Family
ID=22353706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR830241D Expired FR830241A (en) | 1936-12-04 | 1937-12-01 | Improvements to incandescent electric lamps |
Country Status (3)
Country | Link |
---|---|
US (1) | US2117039A (en) |
FR (1) | FR830241A (en) |
GB (1) | GB497627A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2624019A (en) * | 1950-03-31 | 1952-12-30 | Gen Electric | Electric lamp or similar article |
US2664513A (en) * | 1951-09-26 | 1953-12-29 | Westinghouse Electric Corp | Metallic heat shield for incandescent lamps |
-
1936
- 1936-12-04 US US114166A patent/US2117039A/en not_active Expired - Lifetime
-
1937
- 1937-11-23 GB GB32222/37A patent/GB497627A/en not_active Expired
- 1937-12-01 FR FR830241D patent/FR830241A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2117039A (en) | 1938-05-10 |
GB497627A (en) | 1938-12-22 |
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