BE397770A - - Google Patents
Info
- Publication number
- BE397770A BE397770A BE397770DA BE397770A BE 397770 A BE397770 A BE 397770A BE 397770D A BE397770D A BE 397770DA BE 397770 A BE397770 A BE 397770A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/28—Cooling arrangements
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US624208A US1997478A (en) | 1932-07-23 | 1932-07-23 | Electric discharge apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE397770A true BE397770A (fr) |
Family
ID=24501103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE397770D BE397770A (fr) | 1932-07-23 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1997478A (fr) |
| BE (1) | BE397770A (fr) |
| DE (1) | DE657794C (fr) |
| FR (1) | FR758612A (fr) |
| GB (1) | GB410352A (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1069788B (fr) * | 1959-11-26 | |||
| DE750154C (de) * | 1935-03-15 | 1944-12-16 | Rca Corp | Vorrichtung zur Kuehlung fuer teils aus Glas, teils aus Metall bestehende Entladungsroehren groesserer Leistung |
| US2504303A (en) * | 1947-05-23 | 1950-04-18 | Bell Telephone Labor Inc | Metal to glass sealing method |
| US3240979A (en) * | 1962-06-22 | 1966-03-15 | Nicholson Henrietta | Vacuum tube envelope with terminal locating means |
| US3529202A (en) * | 1968-04-19 | 1970-09-15 | Essex International Inc | Lamp bulb with tubular base portion having three notches therein to maintain conductors separated |
-
0
- BE BE397770D patent/BE397770A/xx unknown
-
1932
- 1932-07-23 US US624208A patent/US1997478A/en not_active Expired - Lifetime
-
1933
- 1933-07-19 FR FR758612D patent/FR758612A/fr not_active Expired
- 1933-07-24 GB GB20823/33A patent/GB410352A/en not_active Expired
- 1933-07-25 DE DEA70089D patent/DE657794C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR758612A (fr) | 1934-01-20 |
| US1997478A (en) | 1935-04-09 |
| DE657794C (de) | 1938-03-12 |
| GB410352A (en) | 1934-05-17 |