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发明名称
Regulating device for vacuum pumps
摘要
申请公布号
US2044867(A)
申请公布日期
1936.06.23
申请号
US19340728491
申请日期
1934.06.01
申请人
INGERSOLL-RAND COMPANY
发明人
WOODARD GEORGE H.
分类号
F04C28/24
主分类号
F04C28/24
代理机构
代理人
主权项
地址
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