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发明名称
FLANGED COUPLER FOR CONNECTING TOGETHER VENTILATION DUCT SECTIONS
摘要
申请公布号
PL56604(Y1)
申请公布日期
1998.11.30
申请号
PL19940101049U
申请日期
1994.08.17
申请人
KMW ENGINEERING SP.Z OO.
发明人
WOJTKOWIAK KRZYSZTOF M.
分类号
B21C37/28;F16L23/12;(IPC1-7):F16L23/12
主分类号
B21C37/28
代理机构
代理人
主权项
地址
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