-
公开(公告)号：US3133158A
公开(公告)日：1964-05-12
申请号：US3933860
申请日：1960-06-28
Applicant: ERICSSON TELEFON AB L M
Inventor： HERBERT EDSTROM NILS , WILHELM HARLIN CARL-ERIC , EDGAR SODERLUND ALF
IPC: H04Q1/446
CPC classification number: H04Q1/4465
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
