About: http://webisa.webdatacommons.org/98148954

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	The caster-type driving wheel mechanism shown in FIGS. 19 and 20 is a modification of the driving wheel mechanism according to an embodiment disclosed in Japanese Patent Unexamined Publication No. 9-164968.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com