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发明名称
Gravity feed automatic shut-off valve
摘要
申请公布号
US2130335(A)
申请公布日期
1938.09.20
申请号
US19360104229
申请日期
1936.10.06
申请人
BARKER ERNEST L
发明人
BARKER ERNEST L.
分类号
F16K31/24
主分类号
F16K31/24
代理机构
代理人
主权项
地址
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