FR870666A - Measuring device - Google Patents
Measuring deviceInfo
- Publication number
- FR870666A FR870666A FR870666DA FR870666A FR 870666 A FR870666 A FR 870666A FR 870666D A FR870666D A FR 870666DA FR 870666 A FR870666 A FR 870666A
- Authority
- FR
- France
- Prior art keywords
- measuring device
- measuring
- 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
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US870666XA | 1938-05-19 | 1938-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR870666A true FR870666A (en) | 1942-03-20 |
Family
ID=22202916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR870666D Expired FR870666A (en) | 1938-05-19 | 1939-05-19 | Measuring device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR870666A (en) |
-
1939
- 1939-05-19 FR FR870666D patent/FR870666A/en not_active Expired
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