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经营范围
发明名称
Apparatus for extruding hollow cylindrical bodies
摘要
申请公布号
US2503230(A)
申请公布日期
1950.04.04
申请号
US19470787637
申请日期
1947.11.24
申请人
DYER JAMES J
发明人
DYER JAMES J.
分类号
B28B3/26;B28B21/54
主分类号
B28B3/26
代理机构
代理人
主权项
地址
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