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发明名称
Drain trap
摘要
申请公布号
US2153373(A)
申请公布日期
1939.04.04
申请号
US19380241904
申请日期
1938.11.23
申请人
WILLIAM INGALLS
发明人
INGALLS WILLIAM
分类号
F25D3/04
主分类号
F25D3/04
代理机构
代理人
主权项
地址
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