


US2744739A - Beach sand cleaning device - Google Patents
Obviously? such a machine must preferably be one which-is'capable'of'being-"moved over a large area in a short space of time and which will remove, not only from the surface, but from a substantiallayer beneath the surface, all sortseof refuseh It is an object of this inventionto provide a mobile device of the character described which will clean the surface andupper layer of an …
