.~ Width or thickness variation or marginal cuts repeating longitudinally {2}
575
.~.~ Marginal slots (i.e., deeper than wide)
DEFINITION
Classification: 428/575
(under subclass 573) Subject matter having along its side edges, and extending to said edges, openings which are smaller in their longitudinal extent than they are in another dimension.
SEE OR SEARCH THIS CLASS, SUBCLASS:
571, for stock-material* having a marginal feature designed for calculating the length of the stock-material* or number of units into which it is to be divided, or for facilitating such division by automatic means.