About: http://webisa.webdatacommons.org/74718448

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	FIG. 6a is a side view of the present invention 10 in use in a normal standing position wherein the upright member 22 of invention 10 is perpendicular to the user's shoe and the ground surface.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com