-
公开(公告)号：KR101981091B1
公开(公告)日：2019-05-22
申请号：KR1020170175772
申请日：2017-12-20
Applicant: 충남대학교산학협력단
IPC: H04N21/488 , H04N21/431 , G10L15/26 , G10L25/63
Search Results
1
records
(took 0.016 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
