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经营范围
发明名称
Pump operating mechanism
摘要
申请公布号
US1897108(A)
申请公布日期
1933.02.14
申请号
US19300499589
申请日期
1930.12.02
申请人
BLACK LEE J
发明人
BLACK LEE J.
分类号
F04B47/02
主分类号
F04B47/02
代理机构
代理人
主权项
地址
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