Controllable device of reading of library's collected books protection intelligence

The utility model discloses a controllable device of reading of library's collected books protection intelligence, comprises an equipment body, equipment principal's below is fixed with the slipmat, and is equipped with out the fore -edge below equipment principal's the antetheca, the...

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Bibliographische Detailangaben
Hauptverfasser:	YUAN CUIJIE, QI GUOHUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS PHYSICS
Online-Zugang:	Volltext bestellen
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