PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Only that portion of the plate which is exposed to the small cross-section light beam develops the interference pattern, as a result of the use of a saturable die plate positioned in front of the photographic plate to prevent passage of light therethrough except at that area (or those areas) in which the coherent light exceeds a predetermined threshold value.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com