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经营范围
发明名称
Sewer trap
摘要
申请公布号
US2285756(A)
申请公布日期
1942.06.09
申请号
US19410382240
申请日期
1941.03.07
申请人
SCHWEIGHART PETER J
发明人
SCHWEIGHART PETER J.
分类号
E03F5/08
主分类号
E03F5/08
代理机构
代理人
主权项
地址
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