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发明名称
Drainage valve system
摘要
申请公布号
US2485232(A)
申请公布日期
1949.10.18
申请号
US19470732902
申请日期
1947.03.06
申请人
BROWN GEORGE T
发明人
BROWN GEORGE T.
分类号
B60T17/00;F16T1/00;F16T1/12
主分类号
B60T17/00
代理机构
代理人
主权项
地址
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