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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Others have devised types of catheters and reference may be had to the following U.S. Pat. Nos. 3,030,953; 3,612,050; 3,739,778; 4,424,833; 4,496,348; 4,610,674; 4,629,450; 4,643,712; 4,475,548.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com