FR861887A - electrode for electric discharge tubes - Google Patents
electrode for electric discharge tubesInfo
- Publication number
- FR861887A FR861887A FR861887DA FR861887A FR 861887 A FR861887 A FR 861887A FR 861887D A FR861887D A FR 861887DA FR 861887 A FR861887 A FR 861887A
- Authority
- FR
- France
- Prior art keywords
- electrode
- electric discharge
- discharge tubes
- tubes
- electric
- 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
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU223649X | 1938-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR861887A true FR861887A (en) | 1941-02-19 |
Family
ID=19732406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR861887D Expired FR861887A (en) | 1938-12-12 | 1939-11-25 | electrode for electric discharge tubes |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE437154A (en) |
CH (1) | CH223649A (en) |
FR (1) | FR861887A (en) |
GB (1) | GB519362A (en) |
-
0
- BE BE437154D patent/BE437154A/xx unknown
-
1939
- 1939-01-09 GB GB714/39A patent/GB519362A/en not_active Expired
- 1939-11-25 FR FR861887D patent/FR861887A/en not_active Expired
- 1939-11-27 CH CH223649D patent/CH223649A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH223649A (en) | 1942-09-30 |
GB519362A (en) | 1940-03-21 |
BE437154A (en) |
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