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经营范围
发明名称
Steam trap
摘要
申请公布号
US2089998(A)
申请公布日期
1937.08.17
申请号
US19350054610
申请日期
1935.12.16
申请人
GERDTS GUSTAV F
发明人
GERDTS GUSTAV F.
分类号
F16T1/24
主分类号
F16T1/24
代理机构
代理人
主权项
地址
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