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发明名称
Pump lining
摘要
申请公布号
US2121068(A)
申请公布日期
1938.06.21
申请号
US19370153948
申请日期
1937.07.16
申请人
BUECHLER JOHN A
发明人
BUECHLER JOHN A.
分类号
F04D29/42
主分类号
F04D29/42
代理机构
代理人
主权项
地址
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