About: http://webisa.webdatacommons.org/454534614

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	ing disadvantages inherent in the known types of swimming apparatus now present in the prior art, the present invention provides an improved monofin, and overcomes the above-mentioned disadvantages and drawbacks of the prior art.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com