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经营范围
发明名称
ACOUSTIC SILENCER FOR WATER SUPPLY SYSTEMS
摘要
申请公布号
PL113637(B2)
申请公布日期
1980.12.31
申请号
PL19780211354
申请日期
1978.11.30
申请人
发明人
分类号
E03C;F16L55/00;(IPC1-7):F16L55/00
主分类号
E03C
代理机构
代理人
主权项
地址
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