FR369433A - Electric switch clock - Google Patents
Electric switch clockInfo
- Publication number
- FR369433A FR369433A FR369433DA FR369433A FR 369433 A FR369433 A FR 369433A FR 369433D A FR369433D A FR 369433DA FR 369433 A FR369433 A FR 369433A
- Authority
- FR
- France
- Prior art keywords
- electric switch
- switch clock
- clock
- electric
- switch
- 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
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C21/00—Producing acoustic time signals by electrical means
- G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
- G04C21/30—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times with provision for a number of operations at different times, e.g. ringing the bells in a school
- G04C21/32—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times with provision for a number of operations at different times, e.g. ringing the bells in a school giving indications at a number of places each at a different time, e.g. system of alarms in a hotel
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH369433X | 1905-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR369433A true FR369433A (en) | 1907-01-11 |
Family
ID=1416428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR369433D Expired FR369433A (en) | 1905-09-05 | 1906-09-03 | Electric switch clock |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR369433A (en) |
-
1906
- 1906-09-03 FR FR369433D patent/FR369433A/en not_active Expired
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