PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This compression in turn leads to problems such as headaches, neck and shoulder pain, and sleep disturbance.As shown on FIG. 3, a highly preferred embodiment of the invention solves the problems discussed above by including a first recessed area 24 in at least one of the surfaces of the pillow cushion.
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  • patentgenius.com