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经营范围
发明名称
Ventilating apparatus for closets or toilets
摘要
申请公布号
US2849727(A)
申请公布日期
1958.09.02
申请号
US19560578486
申请日期
1956.04.16
申请人
BOLLINGER EDWARD N;HAUCK SR WILLIAM J
发明人
BOLLINGER EDWARD N.;SR. WILLIAM J. HAUCK,
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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