US PATENT SUBCLASS 235 / 64.7
.~ Photographic
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 235/64.7
(under subclass 61) Calculators having movable members variably positionable with respect to one another, at least one of said members having an index or scale positionable opposite a point on a scale on the other member and there being at least one scale having values peculiar to the art of photography.
