US PATENT SUBCLASS 84 / 471 SR
.~.~.~ Slide rules

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

Internet Version by PATENTEC © 1999      Terms of Use


84 /   HD   MUSIC

453  DF  ACCESSORIES {6}
470 R  DF  .~ Teaching devices {4}
471 R  DF  .~.~ Charts or boards {5}
471 SR.~.~.~ Slide rules

Unofficial Alpha Subclasses: R SR

DEFINITION

Classification: 84/471

Various kinds of charts.