(under subclass 564) Subject matter having passive means to limit a path of movement of the material during its treatment by a fluid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
642, for a film-processing vessel with film support.
, FOR 957, for a foreign art collection involving a fluid-treating apparatus including film guide.
SEE OR SEARCH CLASS
226, Advancing Material of Indeterminate Length, may include a nominal recitation of a supply or take-up coil (e.g., less than a support for such a coil or a cooperative relationship between a tension or exhaust detector and reel driving or reel stopping means, etc.),
196.1, for a passive guide combined with a material feeder.
242, Winding, Tensioning, Guiding, 615+, for a residual guide or guard that directs elongated flexible material that may be combined with more than nominal winding structure.
