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发明名称
APPARATUS FOR EXTRUSION OF PLASTIC PIPE
摘要
申请公布号
CA616503(A)
申请公布日期
1961.03.14
申请号
CAD616503
申请日期
申请人
ALLIED CHEMICAL CORPORATION
发明人
FRANK PORTER
分类号
主分类号
代理机构
代理人
主权项
地址
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