73129714
Jun 9, 1977
Aug 1, 1978
PHOTOSENSITIVE POLYMERIC SHEET MATERIAL ADAPTED TO BE MADE INTO PHOTOSENSITIVE PRINTING PLATES AND ROLLS
ChemicalsEXPOSURE UNITS FOR EXPOSING PHOTOSENSITIVE POLYMERIC SHEET MATERIAL TO LIGHT AND WASHING UNITS FOR DEVELOPING SUCH EXPOSED SHEET MATERIAL
Electrical and Scientific Apparatus