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发明名称
Joint lock
摘要
申请公布号
US1791680(A)
申请公布日期
1931.02.10
申请号
US19280301767
申请日期
1928.08.24
申请人
MILLER ALBERT F
发明人
MILLER ALBERT F.
分类号
E04F11/18
主分类号
E04F11/18
代理机构
代理人
主权项
地址
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