FR20762E - Improvement in tape recorders for telephone calls - Google Patents
Improvement in tape recorders for telephone callsInfo
- Publication number
- FR20762E FR20762E FR20762DA FR20762E FR 20762 E FR20762 E FR 20762E FR 20762D A FR20762D A FR 20762DA FR 20762 E FR20762 E FR 20762E
- Authority
- FR
- France
- Prior art keywords
- improvement
- telephone calls
- tape recorders
- recorders
- tape
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/26—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets
- H02K21/28—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets
- H02K21/32—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets having horse-shoe magnets
- H02K21/325—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets having horse-shoe magnets with the axis of the rotating armature perpendicular to the plane of the magnet
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR480964T | 1915-09-18 | ||
FR20762T | 1915-12-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR20762E true FR20762E (en) | 1919-06-14 |
Family
ID=1361773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR20762D Expired FR20762E (en) | 1915-09-18 | 1915-12-04 | Improvement in tape recorders for telephone calls |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR20762E (en) |
-
1915
- 1915-12-04 FR FR20762D patent/FR20762E/en not_active Expired
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