(under subclass 155) Subject matter comprising means for determining a total surface measurement enclosed within a set of lines or a cubic capacity of a three dimensional figure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55, for liquid level or volume determination.
SEE OR SEARCH CLASS
33, Geometrical Instruments, appropriate subclasses for related subject matter, particularly
121+, for area integrators.
364, Electrical Computers and Data Processing Systems,
528.16, for control of fluid level or volume, and subclass 528.38 for dimensional control.
