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经营范围
发明名称
Stretch-forming machine
摘要
申请公布号
US2676639(A)
申请公布日期
1954.04.27
申请号
US19520326098
申请日期
1952.12.15
申请人
RICHARD SEIFRIED
发明人
GRAY LANDON R.;JR. HARRY P. SMITH,
分类号
B21D11/02
主分类号
B21D11/02
代理机构
代理人
主权项
地址
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