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发明名称
Automatic shutoff valve
摘要
申请公布号
US2487501(A)
申请公布日期
1949.11.08
申请号
US19470763227
申请日期
1947.07.24
申请人
WILLIAMS ELMER R
发明人
WILLIAMS ELMER R.
分类号
F16K17/00
主分类号
F16K17/00
代理机构
代理人
主权项
地址
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