US PATENT SUBCLASS 462 / 21
.~ Multiple books

Current as of: June, 1999
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462 /   HD   BOOKS, STRIPS, AND LEAVES FOR MANIFOLDING

17  DF  BOOK AND LEAF {4}
21.~ Multiple books

DEFINITION

Classification: 462/21

Multiple books*:

(under subclass 17) Subject matter including a plurality of books* utilized for manifolding*.