FR33981E - Biplate and bigrille lamp - Google Patents
Biplate and bigrille lampInfo
- Publication number
- FR33981E FR33981E FR33981DA FR33981E FR 33981 E FR33981 E FR 33981E FR 33981D A FR33981D A FR 33981DA FR 33981 E FR33981 E FR 33981E
- Authority
- FR
- France
- Prior art keywords
- bigrille
- biplate
- lamp
- bigrille 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 |
---|---|---|---|
FR33981T | 1927-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR33981E true FR33981E (en) | 1929-04-29 |
Family
ID=8671595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR33981D Expired FR33981E (en) | 1927-08-10 | 1927-08-10 | Biplate and bigrille lamp |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR33981E (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE852581C (en) * | 1933-09-16 | 1952-10-16 | Helmut Dipl-Ing Pitsch | Mixing tubes |
-
1927
- 1927-08-10 FR FR33981D patent/FR33981E/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE852581C (en) * | 1933-09-16 | 1952-10-16 | Helmut Dipl-Ing Pitsch | Mixing tubes |
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