FR741605A - - Google Patents
Info
- Publication number
- FR741605A FR741605A FR741605DA FR741605A FR 741605 A FR741605 A FR 741605A FR 741605D A FR741605D A FR 741605DA FR 741605 A FR741605 A FR 741605A
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE400756X | 1931-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR741605A true FR741605A (xx) | 1933-02-16 |
Family
ID=6401841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR741605D Expired FR741605A (xx) | 1931-11-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2042261A (xx) |
| FR (1) | FR741605A (xx) |
| GB (1) | GB400756A (xx) |
| NL (1) | NL34272C (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2706784A (en) * | 1950-06-20 | 1955-04-19 | Bell Telephone Labor Inc | Noise source |
| US3259779A (en) * | 1951-11-17 | 1966-07-05 | Westinghouse Electric Corp | Improving efficiency of infrared radiation generation by alkali metal vapor lamps and prolonging their useful lives |
| US2980819A (en) * | 1958-07-01 | 1961-04-18 | Westinghouse Electric Corp | Thermal energy converter |
| NL6511266A (xx) * | 1965-08-28 | 1967-03-01 | ||
| US3917971A (en) * | 1974-03-22 | 1975-11-04 | Gte Sylvania Inc | Metal halide discharge lamp having a thermally insulative end coating |
| DE3702481A1 (de) * | 1987-01-28 | 1988-08-11 | Philips Patentverwaltung | Gasentladungslampe |
-
0
- FR FR741605D patent/FR741605A/fr not_active Expired
- NL NL34272D patent/NL34272C/xx active
-
1932
- 1932-09-06 GB GB24845/32A patent/GB400756A/en not_active Expired
- 1932-11-03 US US641053A patent/US2042261A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2042261A (en) | 1936-05-26 |
| NL34272C (xx) | |
| GB400756A (en) | 1933-11-02 |