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经营范围
发明名称
Making multiple tube structures by extrusion
摘要
申请公布号
US2908037(A)
申请公布日期
1959.10.13
申请号
US19540418442
申请日期
1954.03.24
申请人
MULTIPLE EXTRUSIONS, INC.
发明人
HARKENRIDER ROBERT J.
分类号
B29C47/20
主分类号
B29C47/20
代理机构
代理人
主权项
地址
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