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发明名称
MEJORAS INTRODUCIDAS EN BOMBAS HELICOIDALES DEL TIPO DE CA-VIDAD PROGRESIVA.
摘要
申请公布号
ES378054(A1)
申请公布日期
1973.01.16
申请号
ES19540003780
申请日期
1970.03.30
申请人
H. ALLEN
发明人
分类号
F04C;(IPC1-7):04C/
主分类号
F04C
代理机构
代理人
主权项
地址
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