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发明名称
KREISFOERMIGE LUEFTUNGSKANALVERBINDUNG.
摘要
申请公布号
DE68904000(T2)
申请公布日期
1993.07.15
申请号
DE19896004000T
申请日期
1989.06.09
申请人
DUCTMATE INDUSTRIES, INC., MONONGAHELA, PA., US
发明人
ARNOLDT, PETER J., MONONGAHELA, PA 15063, US
分类号
F16L23/08;(IPC1-7):F16L23/00
主分类号
F16L23/08
代理机构
代理人
主权项
地址
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