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发明名称
Wedge and method of making the same
摘要
申请公布号
US1931234(A)
申请公布日期
1933.10.17
申请号
US19300499747
申请日期
1930.12.03
申请人
MOSELEY TOMLINSON I
发明人
MOSELEY TOMLINSON I.
分类号
B21D53/00
主分类号
B21D53/00
代理机构
代理人
主权项
地址
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