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发明名称
Improvements in diaphragm valves
摘要
申请公布号
GB752562(A)
申请公布日期
1956.07.11
申请号
GB19540001668
申请日期
1954.01.20
申请人
ADOLF ERNEST KAUFMANN
发明人
分类号
F16K7/12
主分类号
F16K7/12
代理机构
代理人
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地址
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