NL50082C - - Google Patents
Info
- Publication number
- NL50082C NL50082C NL50082DA NL50082C NL 50082 C NL50082 C NL 50082C NL 50082D A NL50082D A NL 50082DA NL 50082 C NL50082 C NL 50082C
- Authority
- NL
- Netherlands
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
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
- H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE472307X | 1936-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL50082C true NL50082C (https=) |
Family
ID=6541397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL50082D NL50082C (https=) | 1936-05-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2122285A (https=) |
| FR (1) | FR821958A (https=) |
| GB (1) | GB472307A (https=) |
| NL (1) | NL50082C (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR964680A (https=) * | 1947-04-26 | 1950-08-22 | ||
| US2820918A (en) * | 1955-10-14 | 1958-01-21 | Aronstein Robert | Optical device for therapeutic and other purposes |
| US3284664A (en) * | 1959-10-01 | 1966-11-08 | Sylvania Electric Prod | Pressure regulation of fluorescent lamps by peltier cooling means |
| US3309565A (en) * | 1959-12-14 | 1967-03-14 | Mc Graw Edison Co | Light output of fluorescent lamps automatically held constant by means of peltier type coolers |
-
0
- NL NL50082D patent/NL50082C/xx active
-
1937
- 1937-05-15 US US142931A patent/US2122285A/en not_active Expired - Lifetime
- 1937-05-18 FR FR821958D patent/FR821958A/fr not_active Expired
- 1937-05-18 GB GB13882/37A patent/GB472307A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB472307A (en) | 1937-09-21 |
| FR821958A (fr) | 1937-12-17 |
| US2122285A (en) | 1938-06-28 |