| http://www.w3.org/ns/prov#value | - Therefore, the controlling shaft can control the slats of the blind rotating in different paces, so as to improve the performance of the blind.These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a perspective view of a
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