<http://webisa.webdatacommons.org/421198611>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/prov/62063778>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/421198611> .
<http://webisa.webdatacommons.org/421198611>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/421198611>	<http://www.w3.org/ns/prov#value>	"In order to cut hard materials such as concrete, the cutting teeth 44 are necessarily made of a hard material such as diamond or a diamond-impregnated material." .