US PATENT SUBCLASS 235 / 421
.~ Multiplying

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

Internet Version by PATENTEC © 1999      Terms of Use


235 /   HD   REGISTERS

419  DF  RECORD CONTROLLED CALCULATORS {14}
421.~ Multiplying

DEFINITION

Classification: 235/421

Multiplying:

(under subclass 419) Subject matter wherein the mathematical operation performed is that of multiplication.

SEE OR SEARCH THIS CLASS, SUBCLASS:

422, for dividing machines which are utilized to provide a check of the calculations made by multiplying machines.