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发明名称
Fume removing device for toilet bowls
摘要
申请公布号
US2988756(A)
申请公布日期
1961.06.20
申请号
US19590788951
申请日期
1959.01.26
申请人
HARTLEY RALPH P
发明人
HARTLEY RALPH P.
分类号
E03D9/052
主分类号
E03D9/052
代理机构
代理人
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