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发明名称
摘要
申请公布号
LU77753(A1)
申请公布日期
1977.10.17
申请号
LU19770077753
申请日期
1977.07.13
申请人
发明人
分类号
F15B7/00;F15B11/12;F15B11/22;(IPC1-7):F15B/
主分类号
F15B7/00
代理机构
代理人
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