FR562647A - Improvements to vacuum tubes - Google Patents
Improvements to vacuum tubesInfo
- Publication number
- FR562647A FR562647A FR562647DA FR562647A FR 562647 A FR562647 A FR 562647A FR 562647D A FR562647D A FR 562647DA FR 562647 A FR562647 A FR 562647A
- Authority
- FR
- France
- Prior art keywords
- vacuum tubes
- tubes
- 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
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR562647T | 1923-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR562647A true FR562647A (en) | 1923-11-15 |
Family
ID=8944433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR562647D Expired FR562647A (en) | 1923-02-23 | 1923-02-23 | Improvements to vacuum tubes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR562647A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431198A (en) * | 1944-03-17 | 1947-11-18 | Beltone Hearing Aid Co | Base structure for miniature electron tubes |
-
1923
- 1923-02-23 FR FR562647D patent/FR562647A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431198A (en) * | 1944-03-17 | 1947-11-18 | Beltone Hearing Aid Co | Base structure for miniature electron tubes |
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