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发明名称
Fastening device
摘要
申请公布号
US1955062(A)
申请公布日期
1934.04.17
申请号
US19310543812
申请日期
1931.06.12
申请人
GRAHAM HARRY C
发明人
GRAHAM HARRY C.
分类号
E01B11/36
主分类号
E01B11/36
代理机构
代理人
主权项
地址
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