PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • BACKGROUND OF THE INVENTIONThis invention relates to a writing system for maintaining cleanliness in writing by hand, particularly in environments where the writer's hand, the writing instrument and/or the paper or other writing surface may be soiled or subjected to infectious organisms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com