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经营范围
发明名称
Pumping mechanism
摘要
申请公布号
US1834461(A)
申请公布日期
1931.12.01
申请号
US19290332061
申请日期
1929.01.12
申请人
LEA JOHN M
发明人
LEA JOHN M.
分类号
F02M37/08
主分类号
F02M37/08
代理机构
代理人
主权项
地址
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