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1.发明授权Fm stereophonic multiplex receiver having a single stage for frequency doubling of the pilot signal and amplification of the sub-carrier and l-rsignals 失效具有单级的Fm立体声多路复用接收机，用于导频信号的倍频和副载波和1-r信号的放大
公开(公告)号：US3233044A
公开(公告)日：1966-02-01
申请号：US40462064
申请日：1964-10-19
Applicant: PACKARD BELL ELECTRONICS CORP
Inventor： HOPPER JR WILLIAM P
IPC: H03D1/22
CPC classification number: H03D1/2218
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