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经营范围
发明名称
Improvements in or relating to steam traps
摘要
申请公布号
GB712949(A)
申请公布日期
1954.08.04
申请号
GB19520014954
申请日期
1952.06.13
申请人
PAUL GRAEFE
发明人
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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