About: http://webisa.webdatacommons.org/375072128

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	FIG. 1 is an example of a diffractive subtractive color filter of the type disclosed in the aforesaid U.S. patent application No. 387,614;
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca