FR722502A - Multiple lamp - Google Patents
Multiple lampInfo
- Publication number
- FR722502A FR722502A FR722502DA FR722502A FR 722502 A FR722502 A FR 722502A FR 722502D A FR722502D A FR 722502DA FR 722502 A FR722502 A FR 722502A
- Authority
- FR
- France
- Prior art keywords
- multiple lamp
- lamp
- 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
- H01J21/00—Vacuum tubes
- H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/003—Tubes with plural electrode systems
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1930A0063930 DE612928C (en) | 1930-09-10 | 1930-09-10 | Multiple tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
FR722502A true FR722502A (en) | 1932-03-17 |
Family
ID=6576483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR722502D Expired FR722502A (en) | 1930-09-10 | 1931-09-07 | Multiple lamp |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE612928C (en) |
FR (1) | FR722502A (en) |
-
1930
- 1930-09-10 DE DE1930A0063930 patent/DE612928C/en not_active Expired
-
1931
- 1931-09-07 FR FR722502D patent/FR722502A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE612928C (en) | 1935-05-09 |
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