Combinational bookshelves forming system, has hidden pieces formed on outside corners, threaded anchoring unit provided with outside corners, and tongue and groove formed on adjacent edges of panels

摘要

The system has separate modules whose walls are provided on bookshelves. Panels are attached to portions of the separate modules. A tongue and a groove are formed on adjacent edges of the panels. A threaded anchoring unit is provided with outside corners. Hidden pieces are formed on the outside corners. A right angle is formed between the hidden pieces.