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发明名称
Toilet ventilator
摘要
申请公布号
US2231161(A)
申请公布日期
1941.02.11
申请号
US19380241111
申请日期
1938.11.18
申请人
HANFORD RAYMOND C
发明人
HANFORD RAYMOND C.
分类号
E03D9/052
主分类号
E03D9/052
代理机构
代理人
主权项
地址
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