Heaven side of the bookrest it turns re stopping and its bookrest

摘要

(57) Abstract Objective The page of the manual which is mounted in the bookrest it turns the re, the handSo the inconvenience which is held down is excluded. Constitution On the median of plate 11 to provide the channel 5 vertically, the lower armIn column plate 7, area side it turns convex shaft 8,8 of re stopping the axis it is stuckIn the channel 5 of bookrest itself 4a, heaven side it turns re stopping 9a, onSleeve unrestrictedly the Inlaying it features that you have put under.