PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This invention relates to an electronic focal plane shutter and more particularly to a shutter which is electronically controlled in a manner such as to obtain highly accurate, smooth and reliable control of the width and movements of an exposure slit, but with features of mechanical simplicity and other features such that the shutter is readily and economically manufacturable.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.ca