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发明名称
Blade for rotary pumps
摘要
申请公布号
US1943561(A)
申请公布日期
1934.01.16
申请号
US19320621027
申请日期
1932.07.06
申请人
NATIONAL TRANSIT PUMP & MACHINE COMPANY
发明人
STALEY BENJAMIN M.
分类号
F01C21/08
主分类号
F01C21/08
代理机构
代理人
主权项
地址
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