Voice frequency telegraphy

http://dbpedia.org/resource/Voice_frequency_telegraphy

rdf:langString Voice frequency telegraphy
xsd:integer 59428023
xsd:integer 874397495
xsd:nonNegativeInteger 56
<http://dbpedia.org/resource/Analogue_filter>
<http://dbpedia.org/resource/Analogue_filter>
<http://en.wikipedia.org/wiki/Voice_frequency_telegraphy?oldid=874397495&ns=0>
<http://en.wikipedia.org/wiki/Voice_frequency_telegraphy>

data from the linked data cloud