About: http://webisa.webdatacommons.org/347134637

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	Although FIG. 7 illustrates the use of a weight 39 to urge the stack of cards against the bottom plate 4 and also to assist gravity, other means for achieving this urging could be provided such as a spring.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com