BE355285A - - Google Patents
Info
- Publication number
- BE355285A BE355285A BE355285DA BE355285A BE 355285 A BE355285 A BE 355285A BE 355285D A BE355285D A BE 355285DA BE 355285 A BE355285 A BE 355285A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL301455X | 1927-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE355285A true BE355285A (en:Method) |
Family
ID=19783301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE355285D BE355285A (en:Method) | 1927-11-30 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1910755A (en:Method) |
| BE (1) | BE355285A (en:Method) |
| FR (1) | FR663119A (en:Method) |
| GB (1) | GB301455A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2687471A (en) * | 1948-05-01 | 1954-08-24 | Western Union Telegraph Co | Concentrated arc discharge device |
| US2884591A (en) * | 1952-06-25 | 1959-04-28 | Verne D Snyder | High vacuum leak detector |
-
0
- BE BE355285D patent/BE355285A/xx unknown
-
1928
- 1928-10-18 US US313355A patent/US1910755A/en not_active Expired - Lifetime
- 1928-10-27 FR FR663119D patent/FR663119A/fr not_active Expired
- 1928-11-01 GB GB31857/28A patent/GB301455A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR663119A (fr) | 1929-08-16 |
| GB301455A (en) | 1930-02-03 |
| US1910755A (en) | 1933-05-23 |