-
公开(公告)号：US3540829A
公开(公告)日：1970-11-17
申请号：US3540829D
申请日：1968-09-09
Applicant: BELL TELEPHONE LABOR INC
Inventor： COLLINSON JAMES A , COOK JOHN S , SUBRAMANIAN MAHADEVAN
CPC classification number: G01S17/95 , G01W2001/003 , Y02A90/19
Search Results
1
records
(took 0.042 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
