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发明名称
Method of making pipe hangers
摘要
申请公布号
US1898878(A)
申请公布日期
1933.02.21
申请号
US19270206709
申请日期
1927.07.18
申请人
KLAUER WILLIAM H
发明人
KLAUER WILLIAM H.
分类号
B21D53/36
主分类号
B21D53/36
代理机构
代理人
主权项
地址
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