US PATENT SUBCLASS 968 / 836
.~ Means used apart from the timepiece for starting or stopping same [G04F 7/10]


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

Internet Version by PATENTEC © 1999      Terms of Use



968 /   HD   HOROLOGY

831  DD  APPARATUS FOR MEASURING UNKNOWN TIME INTERVALS BY MECHANICAL MEANS [G04F 7/00] {3}
836.~ Means used apart from the timepiece for starting or stopping same [G04F 7/10]