(under subclass 208) Subject matter in which the shutter includes a plurality of blades normally rotating about, but spaced along a common axis, each spaced blade or blade groups having a separate drive.
(1) Note. The shutters classified here have plural blades which normally move relative to each other, or due to their optical positioning have an effective relative motion. If such plural blades are clamped together contiguously and have no relative motion, they are classified in subclasses 208+ above or in subclasses 219+ below.
