FR620520A - - Google Patents
Info
- Publication number
- FR620520A FR620520A FR620520DA FR620520A FR 620520 A FR620520 A FR 620520A FR 620520D A FR620520D A FR 620520DA FR 620520 A FR620520 A FR 620520A
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR620520A true FR620520A (en) | 1927-04-25 |
Family
ID=1541155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR620520D Expired FR620520A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR620520A (en) |
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0
- FR FR620520D patent/FR620520A/fr not_active Expired