(under subclass 372) Subject matter including means for measuring the width or diameter of an object.
SEE OR SEARCH THIS CLASS, SUBCLASS:
355+, and 357+, for light interference width measurement.
SEE OR SEARCH CLASS
65, Glass Manufacturing,
382, and 491 for the assorting of a filament based on its width or diameter in addition to the making of the filament.
250, Radiant Energy, 306+, for methods and apparatus which may include the measurement of webs or filaments by charged particles; subclasses 336.1+ for methods and apparatus using invisible radiation which may measure webs or filaments, especially subclasses 358.1+ which may measure webs or filaments.