Any device used in binding and finishing (either in-line or off-line) to apply glue or adhesive material to a substrate. See Perfect Binding and Adhesive. On in-line finishing equipment used in web offset lithography, types of commonly-used gluers include paster wheels, remoistenable pattern gluers, backbone gluers, and envelope pattern gluers. See Web Offset Lithography: In-Line Finishing: Gluers.
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