32 METALLIC FILING BOXES PROVIDED WITH A HINGED COVER AND LOCK
FIRST USE APR. 1, 1960; IN COMMERCE APR. 1, 1960; DECEMBER 1937 AS TO "PORTA-FILE." FIRST USE APR. 1, 1960; IN COMMERCE APR. 1, 1960; DECEMBER 1937 AS TO "PORTA-FILE." APPLICANT DISCLAIMS THE WORD "FILE" APART FROM THE MARK.