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发明名称
Replaceable insert
摘要
申请公布号
US2607446(A)
申请公布日期
1952.08.19
申请号
US19520265509
申请日期
1952.01.08
申请人
JOSEPH ROSAN
发明人
ROSAN JOSEPH
分类号
E04B1/41;F16B37/12;F16B39/10
主分类号
E04B1/41
代理机构
代理人
主权项
地址
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