(under subclass 647) Subject matter wherein the structure includes means for restraining the material.
(1) Note. This subclass includes hangers or holders with slots, guides, or compartments for loosely holding the material and does not include clamping.
SEE OR SEARCH THIS CLASS, SUBCLASS:
652+, for photos:graphic medium clamping means.
, FOR 962, for a foreign art collection involving a fluid-treating apparatus film-retaining device.