About: http://webisa.webdatacommons.org/59138762

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	Alternatively, as shown in FIG. 11, a vacuum cap 138 made of soft rubber, plastic, or other elastomeric material, may also be applied at the distal end of the device to provide the acoustic coupling as shown in cross section at FIG. 11.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es