71562655
Aug 2, 1948
Sep 12, 1950
STENCIL SHEETS FOR USE IN DUPLICATING MACHINES; CARBONIZED SHEETS WITH MASTER SHEETS ATTACHED, FOR USE IN PREPARING MASTER COPY FOR SPIRIT DUPLICATING MACHINES; FILE FOLDERS FOR STENCILS;CYLINDER COVERS OF PAPER FOR APPLICATION TO THE DRUM OF A DUPLICATING MACHINE AFTER REMOVAL OF THE STENCIL; SLIP SHEET BOOKS COMPRISING BLANK, DIE CUT PAPER SHEETS; DUPLICATOR IMPRESSION PAPER; BLANK BOOKS FOR FILING STENCILS; VARNISH FOR CORRECTING ERRORS IN STENCIL SHEETS FOR DUPLICATING MACHINES; AND CORRECTION VARNISH THINNER
Building Construction and Repair