72404093
Oct 1, 1971
Aug 15, 1972
PAPER; NAMELY, TEXT, COVER, LAID, BOND, MIMEO, DUPLICATOR LEDGER, MANIFOLD, OFFSET, INDEX, BRISTOL, OPACIFIED, SECOND SHEETS, REGISTER FORMS, PRINTING AND SPECIAL PURPOSE TECHNICAL SPECIFICATION PAPERS; NAMELY, MAGNETIC INK CHARACTER RECOGNITION, OPTICAL CHARACTER RECOGNITION [ , OPTICAL CHARACTER RECOGNITION, ] AND PRESSURE-SENSITIVE REPRODUCTION PAPER
Building Construction and Repair