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发明名称
Antifriction leak-preventing means for pumps and motor-pumps
摘要
申请公布号
US1928795(A)
申请公布日期
1933.10.03
申请号
US19310567407
申请日期
1931.10.07
申请人
REID RICHARD I
发明人
REID RICHARD I.
分类号
F16J15/54
主分类号
F16J15/54
代理机构
代理人
主权项
地址
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