US PATENT SUBCLASS 356 / 401
.~ With registration indicia (e.g., scale)

Current as of: June, 1999
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356 /   HD   OPTICS: MEASURING AND TESTING

399  DF  BY ALIGNMENT IN LATERAL DIRECTION {2}
401.~ With registration indicia (e.g., scale)

DEFINITION

Classification: 356/401

With registration indicia (e.g., scale):

(under subclass 399) Subject matter wherein visual marking are used to determine the degree of alignment.