FR703362A - Incandescent cathode improvements - Google Patents
Incandescent cathode improvementsInfo
- Publication number
- FR703362A FR703362A FR703362DA FR703362A FR 703362 A FR703362 A FR 703362A FR 703362D A FR703362D A FR 703362DA FR 703362 A FR703362 A FR 703362A
- Authority
- FR
- France
- Prior art keywords
- incandescent cathode
- incandescent
- cathode
- cathode improvements
- 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
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE703362X | 1930-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR703362A true FR703362A (en) | 1931-04-29 |
Family
ID=6614248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR703362D Expired FR703362A (en) | 1930-01-21 | 1930-10-07 | Incandescent cathode improvements |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR703362A (en) |
-
1930
- 1930-10-07 FR FR703362D patent/FR703362A/en not_active Expired
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