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发明名称
Automatic water sprinkler control valve
摘要
申请公布号
US2766070(A)
申请公布日期
1956.10.09
申请号
US19560571756
申请日期
1956.03.15
申请人
PARK ALEXANDER C
发明人
PARK ALEXANDER C.
分类号
A01G25/16;F16K21/16
主分类号
A01G25/16
代理机构
代理人
主权项
地址
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