About: http://webisa.webdatacommons.org/386595260

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	b. said tube being of such length as to extend about the rear of said helmet and along the sides thereof;
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com