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发明名称
TWO-STAGE PUMPING APPARATUS
摘要
申请公布号
US3431856(A)
申请公布日期
1969.03.11
申请号
USD3431856
申请日期
1967.02.06
申请人
CONTINENTAL MACHINES INC.
发明人
CHARLES H. WHITMORE;WALTER ERNST
分类号
F04C11/00;(IPC1-7):F04B23/04;F04B49/08
主分类号
F04C11/00
代理机构
代理人
主权项
地址
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