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<http://webisa.webdatacommons.org/191901969>	<http://www.w3.org/ns/prov#value>	"communication mediums may be employed between devices such as wires, cables, IR signals, laser signals, fiber optics, ultrasonic signals, or the like." .
<http://webisa.webdatacommons.org/prov/159210329>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/191901969> .
<http://webisa.webdatacommons.org/191901969>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .