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发明名称
Dual flush control
摘要
申请公布号
US2950483(A)
申请公布日期
1960.08.30
申请号
US19570700684
申请日期
1957.12.04
申请人
RICHARDS FRED P
发明人
RICHARDS FRED P.
分类号
E03D1/14;F16D55/14
主分类号
E03D1/14
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代理人
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