Main use of the article which embodies the design: main usage for cleaning a floor; the key point of the design: the general shape of the article; the drawing mostly representing the key point of the design: perspective view; the broken lines consisting of evenly spaced
dash lines in the drawings depict portions of the floor cleaning
machine that form no part of the claimed design; the broken lines consisting of short and long
dash lines encircling the enlarged detail views are for annotative purposes that form no part of the claimed design; the numbers "1.8", "1.9" "1.10", "1.11", "1.12", "1.13", "1.14", "1.15", "1.16", "1.17", "1.18", and
solid lines between the numbers and the short and long
dash lines in figs. 1.1-1.8 are for the purpose of depicting the short and long dash lines of the enlarged view and form no part of the claimed design; the shading lines in the drawings form no part of the claimed design.