FR691589A - Multiple electron tube with metal vapor cathode - Google Patents
Multiple electron tube with metal vapor cathodeInfo
- Publication number
- FR691589A FR691589A FR691589DA FR691589A FR 691589 A FR691589 A FR 691589A FR 691589D A FR691589D A FR 691589DA FR 691589 A FR691589 A FR 691589A
- Authority
- FR
- France
- Prior art keywords
- cathode
- metal vapor
- electron tube
- multiple electron
- tube
- 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
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/385—Exhausting vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE691589X | 1929-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR691589A true FR691589A (en) | 1930-10-23 |
Family
ID=6601531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR691589D Expired FR691589A (en) | 1929-03-08 | 1930-03-08 | Multiple electron tube with metal vapor cathode |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR691589A (en) |
-
1930
- 1930-03-08 FR FR691589D patent/FR691589A/en not_active Expired
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