FR952327A - Covering, in particular for vacuum tube electrodes - Google Patents
Covering, in particular for vacuum tube electrodesInfo
- Publication number
- FR952327A FR952327A FR952327DA FR952327A FR 952327 A FR952327 A FR 952327A FR 952327D A FR952327D A FR 952327DA FR 952327 A FR952327 A FR 952327A
- Authority
- FR
- France
- Prior art keywords
- covering
- vacuum tube
- tube electrodes
- electrodes
- vacuum
- Prior art date
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/0022—Manufacture
- H01J2893/0023—Manufacture carbonising and other surface treatments
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR952327T | 1947-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR952327A true FR952327A (en) | 1949-11-15 |
Family
ID=9486520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR952327D Expired FR952327A (en) | 1947-08-01 | 1947-08-01 | Covering, in particular for vacuum tube electrodes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR952327A (en) |
-
1947
- 1947-08-01 FR FR952327D patent/FR952327A/en not_active Expired
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