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发明名称
Method of making hinge members
摘要
申请公布号
US2345562(A)
申请公布日期
1944.04.04
申请号
US19400354934
申请日期
1940.08.31
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
主权项
地址
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