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发明名称
Counterbalance pump
摘要
申请公布号
US2659315(A)
申请公布日期
1953.11.17
申请号
US19510238690
申请日期
1951.07.26
申请人
THE RICHARDSON COMPANY OF OREGON, LTD.
发明人
RICHARDSON WARD K.
分类号
F04B9/06
主分类号
F04B9/06
代理机构
代理人
主权项
地址
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