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发明名称
Formation of porous plastic draining hose - pipe
摘要
The pipe comprises a mixed polyolefine and glass fibre material and is jacketed with a supporting spiral made of polyolefine. The tube and spiral are welded or glued together.
申请公布号
DE1814841(A1)
申请公布日期
1970.07.02
申请号
DE19681814841
申请日期
1968.12.14
申请人
WALLOSCHKE,ERNST
发明人
WALLOSCHKE,ERNST
分类号
B29C53/56;G01B11/28
主分类号
B29C53/56
代理机构
代理人
主权项
地址
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