(under subclass 517) Subject matter which has particular cornerpieces, catches, or other devices which support or retain a light sensitive material within a plateholder or which provides an adapter structure (i.e., kit) to permit one size of light-sensitive material to be inserted in a plateholder normally supporting light sensitive material of a different size.
(1) Note. Adaptations of kits to special types of magazine cameras are classified with camera structure. Thus, extended bases upon kits occur in this class, subclass 371.