Coating or plastic compositions specially designed for producing sheets or surfaces for receiving the negative design in copy printing and usually serving as a member for which to print a large number of copies.
SEE OR SEARCH THIS CLASS, SUBCLASS:
311, and other appropriate subclasses below, for duplicator fluids, that is, solvents which may be applied to the hectograph surface or the copy sheet.
SEE OR SEARCH CLASS
101, Printing,
131, for apparatus employing copy compositions; subclass 468 for hectographs and processes of use.
427, Coating Processes,
144, for processes of applying a uniform coating to a base disclosed as useful in making hectos:graphic copying surfaces.
