(under subclass 243.4) Surface standard further comprising the optical comparison for the existence of a contaminant residing on the veneer of the article with a basis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237.3, for the detection of a foreign object on the surface
of an article.
238.3, for the detection of foreign particles on or within a textile product.
239.5, for the detection of an object or particle in or on a transparent container.
239.8, for the detection of a foreign particle or object on the surface of a transparent article.
