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公开(公告)号：US3214691A
公开(公告)日：1965-10-26
申请号：US2898660
申请日：1960-05-13
Applicant: NAT COMPANY INC
Inventor： SPROUL ROBERT W , BRILLIANT MARTIN B , OXMAN MARTIN H , ROBERT ALTER
IPC: H04B7/12
CPC classification number: H04B7/12
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公开(公告)号：US3128465A
公开(公告)日：1964-04-07
申请号：US12724961
申请日：1961-07-27
Applicant: NAT COMPANY INC
Inventor： BRILLIANT MARTIN B
CPC classification number: H03L7/0812 , G04R20/00
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公开(公告)号：US3019335A
公开(公告)日：1962-01-30
申请号：US83985659
申请日：1959-09-14
Applicant: NAT COMPANY INC
Inventor： BRILLIANT MARTIN B
IPC: H03G11/00
CPC classification number: H03G11/002
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