CH55124A - Electric alarm and alarm device - Google Patents
Electric alarm and alarm deviceInfo
- Publication number
- CH55124A CH55124A CH55124A CH55124DA CH55124A CH 55124 A CH55124 A CH 55124A CH 55124 A CH55124 A CH 55124A CH 55124D A CH55124D A CH 55124DA CH 55124 A CH55124 A CH 55124A
- Authority
- CH
- Switzerland
- Prior art keywords
- alarm
- electric
- alarm device
- electric alarm
- Prior art date
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
- G04C21/326—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 adjustable from the different places themselves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH55124T | 1910-11-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH55124A true CH55124A (en) | 1912-07-16 |
Family
ID=4294851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH55124A CH55124A (en) | 1910-11-12 | 1910-11-12 | Electric alarm and alarm device |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH55124A (en) |
-
1910
- 1910-11-12 CH CH55124A patent/CH55124A/en unknown
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