FR849615A - Perfectionnement aux lampemètres - Google Patents
Perfectionnement aux lampemètresInfo
- Publication number
- FR849615A FR849615A FR849615DA FR849615A FR 849615 A FR849615 A FR 849615A FR 849615D A FR849615D A FR 849615DA FR 849615 A FR849615 A FR 849615A
- Authority
- FR
- France
- Prior art keywords
- meters
- lamp
- improvement
- lamp meters
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/24—Testing of discharge tubes
- G01R31/25—Testing of vacuum tubes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR849615T | 1939-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR849615A true FR849615A (fr) | 1939-11-28 |
Family
ID=9314812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR849615D Expired FR849615A (fr) | 1939-01-30 | 1939-01-30 | Perfectionnement aux lampemètres |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR849615A (fr) |
-
1939
- 1939-01-30 FR FR849615D patent/FR849615A/fr not_active Expired
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