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经营范围
发明名称
Combined septic tank and filter
摘要
申请公布号
US3029950(A)
申请公布日期
1962.04.17
申请号
US19580764139
申请日期
1958.09.29
申请人
FRASCA BENJAMIN J
发明人
FRASCA BENJAMIN J.
分类号
C02F3/28
主分类号
C02F3/28
代理机构
代理人
主权项
地址
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