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发明名称
Pipe beading apparatus
摘要
申请公布号
US2197099(A)
申请公布日期
1940.04.16
申请号
US19380228524
申请日期
1938.09.06
申请人
DEWAR CHARLES V
发明人
DEWAR CHARLES V.
分类号
B21D17/02
主分类号
B21D17/02
代理机构
代理人
主权项
地址
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