US PATENT SUBCLASS 283 / 31
.~.~ Book

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


283 /   HD   PRINTED MATTER

23  DF  TRANSPORTATION {8}
30  DF  .~ Cash-fare receipt {1}
31.~.~ Book

DEFINITION

Classification: 283/31

Each invention involves a book.

SEE OR SEARCH THIS CLASS, SUBCLASS:

16,