DE115834C - - Google Patents
Info
- Publication number
- DE115834C DE115834C DENDAT115834D DE115834DA DE115834C DE 115834 C DE115834 C DE 115834C DE NDAT115834 D DENDAT115834 D DE NDAT115834D DE 115834D A DE115834D A DE 115834DA DE 115834 C DE115834 C DE 115834C
- Authority
- DE
- Germany
- Prior art keywords
- clock
- room
- ring
- minutes
- time table
- 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.)
- Active
Links
- 239000004020 conductor Substances 0.000 description 2
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
- G04C21/323—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 by the hand(s) or handlike members closing the contacts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Lowering Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE115834C true DE115834C (enExample) |
Family
ID=385233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT115834D Active DE115834C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE115834C (enExample) |
-
0
- DE DENDAT115834D patent/DE115834C/de active Active
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