This invention comprises a unique method for the sale of natural stone, special packaging for the stone and a method of doing business to make the stone available in high volume stores to the average consumer. The method comprises prefabricating the stone into slabs at or near the location where it is...http://www.google.fr/patents/US7240791?utm_source=gb-gplus-shareBrevet US7240791 - Method of packaging and selling natural stone
