FR742291A - - Google Patents
Info
- Publication number
- FR742291A FR742291A FR742291DA FR742291A FR 742291 A FR742291 A FR 742291A FR 742291D A FR742291D A FR 742291DA FR 742291 A FR742291 A FR 742291A
- Authority
- FR
- France
- 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
- H01K1/02—Incandescent bodies
- H01K1/14—Incandescent bodies characterised by the shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/58—Cooling arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Resistance Heating (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1599241X | 1924-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR742291A true FR742291A (fr) | 1933-03-03 |
Family
ID=3688408
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR742291D Expired FR742291A (fr) | 1924-10-27 | ||
| FR621135D Expired FR621135A (fr) | 1924-10-27 | 1926-09-07 | Perfectionnements apportés aux lampes électriques à incandescence |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR621135D Expired FR621135A (fr) | 1924-10-27 | 1926-09-07 | Perfectionnements apportés aux lampes électriques à incandescence |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1599241A (fr) |
| FR (2) | FR621135A (fr) |
| GB (1) | GB267009A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662789A (en) * | 1970-08-24 | 1972-05-16 | Duro Test Corp | Mandrel for manufacturing filament coils and method for manufacturing filament coils |
| GB2120006B (en) * | 1982-05-07 | 1985-10-09 | Gen Electric Plc | Diversion of heat and light from ribbon seals in high-power electric lamps |
| JPH0628151B2 (ja) * | 1988-02-10 | 1994-04-13 | 東芝ライテック株式会社 | ハロゲン電球 |
-
0
- FR FR742291D patent/FR742291A/fr not_active Expired
-
1926
- 1926-06-03 US US113515A patent/US1599241A/en not_active Expired - Lifetime
- 1926-09-06 GB GB21926/26A patent/GB267009A/en not_active Expired
- 1926-09-07 FR FR621135D patent/FR621135A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1599241A (en) | 1926-09-07 |
| FR621135A (fr) | 1927-05-05 |
| GB267009A (en) | 1927-03-10 |