FR68266E - - Google Patents
Info
- Publication number
- FR68266E FR68266E FR68266DA FR68266E FR 68266 E FR68266 E FR 68266E FR 68266D A FR68266D A FR 68266DA FR 68266 E FR68266 E FR 68266E
- 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
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/36—Tubes with flat electrodes, e.g. disc electrode
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US807069XA | 1954-06-09 | 1954-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR68266E true FR68266E (fr) | 1958-04-28 |
Family
ID=22159087
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR68266D Expired FR68266E (fr) | 1954-06-09 | ||
| FR1121838D Expired FR1121838A (fr) | 1954-06-09 | 1955-04-06 | Tube électronique |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1121838D Expired FR1121838A (fr) | 1954-06-09 | 1955-04-06 | Tube électronique |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1064647B (fr) |
| FR (2) | FR1121838A (fr) |
| GB (1) | GB807069A (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE906250C (de) * | 1938-03-29 | 1954-01-28 | Rca Corp | Verfahren zur Erzeugung von freiem Erdalkalimetall |
| BE444137A (fr) * | 1941-04-01 |
-
0
- FR FR68266D patent/FR68266E/fr not_active Expired
-
1955
- 1955-04-06 FR FR1121838D patent/FR1121838A/fr not_active Expired
- 1955-06-06 GB GB16206/55A patent/GB807069A/en not_active Expired
- 1955-06-10 DE DEG17352A patent/DE1064647B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR1121838A (fr) | 1956-08-27 |
| GB807069A (en) | 1959-01-07 |
| DE1064647B (de) | 1959-09-03 |