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经营范围
发明名称
Extrusion apparatus
摘要
申请公布号
US2019119(A)
申请公布日期
1935.10.29
申请号
US19340722596
申请日期
1934.04.26
申请人
DUPONT VISCOLOID COMPANY
发明人
CRANE PAUL W.;FIELDS REUBEN T.
分类号
B29D7/01
主分类号
B29D7/01
代理机构
代理人
主权项
地址
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