US PATENT SUBCLASS 281 / 36
.~.~ Backs

Current as of: June, 1999
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281 /   HD   BOOKS, STRIPS, AND LEAVES

15.1  DF  BOOK, ELEMENT THEREOF, OR ACCESSORY THEREFOR {9}
29  DF  .~ Covers {8}
36.~.~ Backs

DEFINITION

Classification: 281/36

Inventions relating to the backs of covers.

(1) Note. The connection between a back and the sides is placed here, as is also the combination of a back with the connection between the back and the sides.

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29, through 35.