DE277618C - - Google Patents
Info
- Publication number
- DE277618C DE277618C DENDAT277618D DE277618DA DE277618C DE 277618 C DE277618 C DE 277618C DE NDAT277618 D DENDAT277618 D DE NDAT277618D DE 277618D A DE277618D A DE 277618DA DE 277618 C DE277618 C DE 277618C
- Authority
- DE
- Germany
- Prior art keywords
- relay
- door
- battery
- bell
- contact
- 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
- 238000010586 diagram Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
- G07C9/00674—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE277618C true DE277618C (https=) |
Family
ID=533697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT277618D Active DE277618C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE277618C (https=) |
-
0
- DE DENDAT277618D patent/DE277618C/de active Active
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