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发明名称
Safety field-pump stop
摘要
申请公布号
US1778247(A)
申请公布日期
1930.10.14
申请号
US19290337389
申请日期
1929.02.04
申请人
DENTON HOWELL A
发明人
DENTON HOWELL A.
分类号
F04B49/10
主分类号
F04B49/10
代理机构
代理人
主权项
地址
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