FR834770A - Electric cathode-ray lamp the size of miniature lamps - Google Patents
Electric cathode-ray lamp the size of miniature lampsInfo
- Publication number
- FR834770A FR834770A FR834770DA FR834770A FR 834770 A FR834770 A FR 834770A FR 834770D A FR834770D A FR 834770DA FR 834770 A FR834770 A FR 834770A
- Authority
- FR
- France
- Prior art keywords
- size
- ray lamp
- electric cathode
- miniature lamps
- miniature
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE203542X | 1937-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR834770A true FR834770A (en) | 1938-12-01 |
Family
ID=5777008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR834770D Expired FR834770A (en) | 1937-11-23 | 1938-03-04 | Electric cathode-ray lamp the size of miniature lamps |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH203542A (en) |
FR (1) | FR834770A (en) |
GB (1) | GB503639A (en) |
NL (1) | NL49800C (en) |
-
0
- NL NL49800D patent/NL49800C/xx active
-
1937
- 1937-12-07 GB GB33859/37A patent/GB503639A/en not_active Expired
-
1938
- 1938-03-04 FR FR834770D patent/FR834770A/en not_active Expired
- 1938-08-19 CH CH203542D patent/CH203542A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL49800C (en) | |
CH203542A (en) | 1939-03-15 |
GB503639A (en) | 1939-04-12 |
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