File copying device

The utility model relates to the technical field of file copying, and discloses a file copying device which comprises a copying machine, a cover plate is assembled on the copying machine, a suction cup is assembled on the side face, facing the copying machine, of the cover plate, an air exhaust asse...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ZHAO SHU'E
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS
Online-Zugang:	Volltext bestellen
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