Dual -purpose honeycomb of day night (window) curtain of acting as go -between

The utility model relates to a dual -purpose honeycomb of day night (window) curtain of acting as go -between, including first casement and second casement, the upper end of first casement is equippedwith the pulling frame, the lower extreme of second casement is equipped with down the pulling frame...

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Bibliographic Details
Main Author YU KANGFA
Format Patent
LanguageChinese
English
Published 02.11.2018
Subjects
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