Multifunctional sliding rail type electronic class board

The utility model relates to the technical field of electronic class boards, in particular to a multifunctional sliding rail type electronic class board which comprises an electronic class board body, a dust removal structure is arranged in the electronic class board body, a loudspeaker is arranged...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	WANG BANGQING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING CLEANING CLEANING IN GENERAL CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION LABELS OR NAME-PLATES PERFORMING OPERATIONS PHYSICS PREVENTION OF FOULING IN GENERAL SEALS SIGNS TRANSPORTING
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