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发明名称
Blind construction
摘要
申请公布号
US2520524(A)
申请公布日期
1950.08.29
申请号
US19460696873
申请日期
1946.09.13
申请人
AJAX-CONSOLIDATED COMPANY
发明人
JR. FRANK E. BRETZ,
分类号
E06B9/303
主分类号
E06B9/303
代理机构
代理人
主权项
地址
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