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发明名称
Toilet ventilating apparatus
摘要
申请公布号
US3059245(A)
申请公布日期
1962.10.23
申请号
US19600070299
申请日期
1960.11.18
申请人
BELL ALFRED D
发明人
BELL ALFRED D.
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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