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发明名称
METHOD OF PRODUCING DOUBLE-WALL PLASTIC TUBES
摘要
申请公布号
YU201477(A)
申请公布日期
1982.08.31
申请号
YU19770002014
申请日期
1977.08.22
申请人
HEGLER WILHELM
发明人
HELGER W.;HELGER P.R.
分类号
F16L11/11;B26F1/00;B29B7/00;B29C45/00;B29C47/00;B29C47/24;B29C47/88;B29C49/00;B29C53/30;B29C59/00;B29C65/00;B29D23/18;B29D24/00;F16L9/18;F16L57/00;(IPC1-7):B29D23/18;F16L11/06
主分类号
F16L11/11
代理机构
代理人
主权项
地址
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