Patent search ap:("BELL TELEPHONE LABOR INC") AND inv:"MACLEAN RODERICK C" Page 1

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发明授权
Digital phase locked loop 失效

公开(公告)号：US3550132A

公开(公告)日：1970-12-22

申请号：US3550132D

申请日：1967-12-27

Applicant: BELL TELEPHONE LABOR INC

Inventor： KURTH CARL F , MACLEAN RODERICK C

IPC: H03C3/09 , H04B14/00 , H04B1/58

CPC classification number: H03C3/09 , H04B14/006

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