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发明名称
摘要
申请公布号
GB1252736(A)
申请公布日期
1971.11.10
申请号
GBD1252736
申请日期
1967.12.05
申请人
发明人
分类号
F15B11/048;F15B15/12
主分类号
F15B11/048
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代理人
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地址
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