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经营范围
发明名称
Fluid lift pump
摘要
申请公布号
US2038441(A)
申请公布日期
1936.04.21
申请号
US19330658315
申请日期
1933.02.24
申请人
MARGARET D. PATTERSON;CHAS. M. O'LEARY, JR.
发明人
PATTERSON EDGAR W.
分类号
F04B47/00
主分类号
F04B47/00
代理机构
代理人
主权项
地址
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