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经营范围
发明名称
Improved compressor valve having annular valve elements
摘要
申请公布号
GB2071818(A)
申请公布日期
1981.09.23
申请号
GB19810007169
申请日期
1981.03.06
申请人
BACKMAN H
发明人
分类号
F04B39/10;(IPC1-7):F16K15/08
主分类号
F04B39/10
代理机构
代理人
主权项
地址
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