-
公开(公告)号：US2890475A
公开(公告)日：1959-06-16
申请号：US56439456
申请日：1956-02-09
Applicant: GEORGE W HOUSBY JR
Inventor： MARTIN CARLSON
IPC: E05F5/02
CPC classification number: E05F5/02 , E05Y2201/474 , Y10T16/61 , Y10T292/0908
Search Results
1
records
(took 0.01 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
