Washers for valves, etc., [120]

Washing equipment, care of, [136], [138], [139], [141], [142]

Washing machines, [132], [133], [135], [136], [209]

Waste, [76], [124]

Water, [67], [102], [106]

closets, [128]

coolers, [105], [108]

filters, [114]

for cooling, [107], [215]

for furnaces, [64], [66], [67], [68], [70], [71], [72], [81]