FR870453A - Réveille-matin synchrone - Google Patents
Réveille-matin synchroneInfo
- Publication number
- FR870453A FR870453A FR870453DA FR870453A FR 870453 A FR870453 A FR 870453A FR 870453D A FR870453D A FR 870453DA FR 870453 A FR870453 A FR 870453A
- Authority
- FR
- France
- Prior art keywords
- alarm clock
- synchronous alarm
- synchronous
- clock
- alarm
- 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
- 230000001360 synchronised effect Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B23/00—Arrangements producing acoustic signals at preselected times
- G04B23/02—Alarm clocks
- G04B23/026—Hammer driving; hammers; devices with several hammers or sounding bodies; vibrators
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE870453X | 1939-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR870453A true FR870453A (fr) | 1942-03-12 |
Family
ID=6806344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR870453D Expired FR870453A (fr) | 1939-08-29 | 1941-02-27 | Réveille-matin synchrone |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR870453A (fr) |
-
1941
- 1941-02-27 FR FR870453D patent/FR870453A/fr not_active Expired
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