50 NOISELESS AND WATERPROOF FLOOR MATS FOR FLOORS OR WHEREVER FOUND DESIRABLE PREFERABLY MADE UP OF A PLURALITY OF PLIES OF LIVE RUBBER CONSISTING OF A FACE LAYER OF FIRM, SMOOTH TILE RUBBER, A THICK CUSHION OF RESILIENT CELLULAR RUBBER, THE PLIES BEING BONDED TOGETHER WITH SELF-VULCANIZING LATEX, IT BEING UNDERSTOOD THAT THE PLIES MAY BE MADE UP OF EQUIVALENT OR SIMILAR MATERIALS