FR954762A - - Google Patents
Info
- Publication number
- FR954762A FR954762A FR954762DA FR954762A FR 954762 A FR954762 A FR 954762A FR 954762D A FR954762D A FR 954762DA FR 954762 A FR954762 A FR 954762A
- 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
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR954762A true FR954762A (zh) | 1950-01-05 |
Family
ID=1557603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR954762D Expired FR954762A (zh) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR954762A (zh) |
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0
- FR FR954762D patent/FR954762A/fr not_active Expired