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发明名称
Swinging sash operator
摘要
申请公布号
US2817511(A)
申请公布日期
1957.12.24
申请号
US19540422395
申请日期
1954.04.12
申请人
VALLEY METAL PRODUCTS CO.
发明人
REYNAUD SAMUEL CHESTER
分类号
E05F11/10;E05F11/16
主分类号
E05F11/10
代理机构
代理人
主权项
地址
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