-
公开(公告)号：US2183147A
公开(公告)日：1939-12-12
申请号：US7834836
申请日：1936-05-07
Applicant: RCA CORP
Inventor： JOHN B MOORE , MATHES RICHARD E
IPC: H03M13/51
CPC classification number: H03M13/51
Search Results
1
records
(took 0.007 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
