About: http://webisa.webdatacommons.org/182216356

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	Both patents require the clamp components to directly contact the railings along substantial surface areas that easily cause damage such as but not limited to scratches, nicks, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com