FR540760A - - Google Patents
Info
- Publication number
- FR540760A FR540760A FR540760DA FR540760A FR 540760 A FR540760 A FR 540760A FR 540760D A FR540760D A FR 540760DA FR 540760 A FR540760 A FR 540760A
- Authority
- FR
- France
- 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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR540760A true FR540760A (ja) | 1922-07-18 |
Family
ID=1537562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR540760D Expired FR540760A (ja) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR540760A (ja) |
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0
- FR FR540760D patent/FR540760A/fr not_active Expired