(under subclass 233) Subject matter wherein the apertures or depressions cooperating with the advancing means (such as the claw or sprocket) are arranged in a particular manner.
(1) Note. For classification here (as opposed to Class 226, Advancing Material of Indeterminate Length) the recited apertures or depressions are related only to each other or to the film strip, per se; claims to the combination drive means plus the film with particular driving apertures are classified in Class 226, subclasses 52+.
