US PATENT SUBCLASS 901 / 47
.~ Optical
Current as of: June, 1999
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DEFINITION
Classification: 901/47
Optical:
Subject matter under cross-reference subcollection 46 which includes means sensitive to light rays. [figure]
SEE OR SEARCH CLASS
356, Optics: Measuring and Testing,
28, for sensors which optically measure velocity, subclasses 139.04 through 139.08, 141.1 through 141.5 and 152.1 through 152.3 for optical sensors which measure angles or misalignment, and subclass 400 for optical sensors which measure alignment in a lateral direction.
