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72415567 14 Feb 1972 | on 22 May 1995 | PROTECTIVE COATINGS FOR COMPUTER MEMORY DISCS,PROTECTIVE COATINGS FOR ... Class 016 Class 016 Paper Goods and Printed Material PROTECTIVE COATINGS FOR COMPUTER MEMORY DISCS | | | HARDCOTE POLY-DISC SYSTEMS, INC.
72415566 14 Feb 1972 | on 23 May 1994 | PROTECTIVE COATINGS FOR COMPUTER MEMORY DISCS,PROTECTIVE COATINGS FOR ... Class 016 Class 016 Paper Goods and Printed Material HARDCOAT | | | LUBRICOTE POLY-DISC SYSTEMS, INC.
72415568 14 Feb 1972 | on 18 Apr 1994 | PROTECTIVE COATINGS FOR COMPUTER MEMORY DISCS,PROTECTIVE COATINGS FOR ... Class 016 Class 016 Paper Goods and Printed Material PROTECTIVE COATINGS FOR COMPUTER MEMORY DISCS | |