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1.Means for positively retaining windows in open or closed positions. 失效
Title translation: 意味着在开放或关闭位置中正确保留窗口。公开(公告)号:US792817A
公开(公告)日:1905-06-20
申请号:US1904219150
申请日:1904-08-01
Applicant: EVANS NEWTON R
Inventor: EVANS NEWTON R
CPC classification number: E05F15/627 , E05Y2201/474