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发明名称
Improvements in and relating to the rotors of gear-wheel pumps and motors
摘要
申请公布号
GB370214(A)
申请公布日期
1932.04.07
申请号
GB19310013073
申请日期
1931.05.04
申请人
HEINRICH KLEINRAHM
发明人
分类号
F01K9/00;F04C2/14;F04C2/18
主分类号
F01K9/00
代理机构
代理人
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地址
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