Electrical remote-control system
作者： Carl L Goodwin
DOI:
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摘要:
lens.org 参考文章(9)
Paul H Crago, Train-annunciating apparatus ,(1929)
Cianchi Alfredo, Call or warning system ,(1937)
Francis A Hubbard, Call transmitter for telephone signaling systems ,(1943)
Roger W Mcbrien, Light circuit alarm system ,(1942)
John L Woodworth, Carrier-current control system ,(1942)
Raymond C Haimbaugh, Signal receiver for remote control apparatus ,(1940)
Torkel E Torkelson, Electrical control system ,(1938)
Fred H Osborne, Lamar E Hayslett, Remote control apparatus ,(1941)
Reeves Alec Harley, Electric signaling system ,(1938)