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1
Q23910749-AA406894-718A-4CF7-82BE-F574BE41CF14
Q23910749-AA406894-718A-4CF7-82BE-F574BE41CF14
BestRank
Statement
http://www.wikidata.org/entity/statement/Q23910749-AA406894-718A-4CF7-82BE-F574BE41CF14
A system for measuring through-the-earth radio propagation
P921
Q23910749-AA406894-718A-4CF7-82BE-F574BE41CF14
BestRank
Statement
http://www.wikidata.org/entity/statement/Q23910749-AA406894-718A-4CF7-82BE-F574BE41CF14
rank
NormalRank
type
BestRank
Statement
wasDerivedFrom
c5e328d00f2bc20c20976e7748920cd045af43b3
P921
underground mining