Transmitting and receiving apparatus for electromagnetic prospecting

作者: William M Barret

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参考文章(4)
Robert B Dome, Tuning indication system ,(1941)
Loftin Edward H, Lyon Henry H, Radio signaling system ,(1920)
James Harris Rogers, Henry H Lyon, Wireless signaling system. ,(1916)
Jean Joseph Marie De. De. Henri, Radio signaling system ,(1924)