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经营范围
发明名称
Valve structure
摘要
申请公布号
US1873138(A)
申请公布日期
1932.08.23
申请号
US19300484183
申请日期
1930.09.24
申请人
MACDONALD MITCHELL JAMES
发明人
MITCHELL JAMES MACDONALD
分类号
F16K7/00;F16K7/10
主分类号
F16K7/00
代理机构
代理人
主权项
地址
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