-
公开(公告)号：US2469539A
公开(公告)日：1949-05-10
申请号：US64958246
申请日：1946-02-23
Applicant: BELL TELEPHONE LABOR INC
Inventor： ABBOTT HENRY H , BASCOM HENRY M , FAIRLAMB PRESTON B
IPC: H04W84/02
CPC classification number: H04W84/02
Search Results
1
records
(took 0.011 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
