Removable loose -leaf book that unloads binding

The utility model provides a removable loose -leaf book that unloads binding, includes the book front cover, the book front cover along the middle part turn over form before front cover and back frontcover, have a plurality of pages in the front between front cover and the back front cover, be equip...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: SONG YIZHANG
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
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