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发明名称
Closure operator and lock
摘要
申请公布号
US1879994(A)
申请公布日期
1932.09.27
申请号
US19310579764
申请日期
1931.12.08
申请人
TRUSCON STEEL COMPANY
发明人
SCHAFFERT ADOLF H.
分类号
E05C17/18
主分类号
E05C17/18
代理机构
代理人
主权项
地址
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