Signaling device for annunciating a status of a monitored person or object
This invention pertains to signaling devices, and more particularly to a signaling device for annunciating a status of a monitored person or object. A signaling device for annunciating in a hallway of a building a status of a monitored person or object is provided. The signaling device includes at l...
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| Format: | Patent |
| Sprache: | eng |
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