An apparatus for removing surface coverings comprises a feeder device capable of providing a supply of dry ice pieces, a pellet-size reducer operatively associated with the feeder device to receive dry ice pieces from said feeder device and reduce the size of the dry ice pieces to nominal diameters less...http://www.google.es/patents/US6174225?utm_source=gb-gplus-sharePatente US6174225 - Dry ice pellet surface removal apparatus and method
Dry ice pellet surface removal apparatus and method
