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发明名称
Automatic water control switch
摘要
申请公布号
US2514731(A)
申请公布日期
1950.07.11
申请号
US19480055169
申请日期
1948.10.18
申请人
SOURBER EARL J
发明人
SOURBER EARL J.
分类号
F04B39/06;F04B49/10
主分类号
F04B39/06
代理机构
代理人
主权项
地址
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