Linkage alarm
The utility model discloses a linkage alarm, including an alarm sensor, just alarm sensor includes a shell, just back on the shell has set firmly a fixed suction cup, just be equipped with an urgent help button on the side on the shell, the place ahead downside of shell is equipped with a speaker, t...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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