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发明名称
Method of making covered-joint hinge members
摘要
申请公布号
US1763337(A)
申请公布日期
1930.06.10
申请号
US19270203429
申请日期
1927.07.05
申请人
ATWOOD SETH B
发明人
ATWOOD SETH B.
分类号
B21D53/40
主分类号
B21D53/40
代理机构
代理人
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