About: http://webisa.webdatacommons.org/280898613

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	The alkali halide film 20, which in effect constitutes a multiplicity of salt patches, may be applied in a variety of ways such as through the openings in an apertured molybdenum mask 50 represented in FIGS. 1 and 4.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com