-
公开(公告)号：US3136847A
公开(公告)日：1964-06-09
申请号：US21117562
申请日：1962-07-20
Applicant: BELL TELEPHONE LABOR INC
Inventor： BROWN EARL F
IPC: H04N7/12
CPC classification number: H04N7/125
Search Results
11
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
