US PATENT SUBCLASS 211 / 43
.~.~ Adjustable
Current as of: June, 1999
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DEFINITION
Classification: 211/43
(under subclass 42) Devices in which the book supports can follow the end book of a row or be adjusted to book rows of various lengths.
SEE OR SEARCH THIS CLASS, SUBCLASS:
184, for racks which support books, etc., on both its sides.