-
公开(公告)号：US2924449A
公开(公告)日：1960-02-09
申请号：US55262755
申请日：1955-12-12
Applicant: RUSSELL HOPKINS
Inventor： ALBERT LEIMER , LUKAS SCHMID
IPC: E05F15/12
CPC classification number: E05F15/63 , E05Y2201/236 , E05Y2201/434 , E05Y2600/46 , E05Y2800/11 , E05Y2900/132
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
