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发明名称
Pumping mechanism
摘要
申请公布号
US1924466(A)
申请公布日期
1933.08.29
申请号
US19320598844
申请日期
1932.03.14
申请人
SMITH JAMES A
发明人
SMITH JAMES A.
分类号
B60P3/22
主分类号
B60P3/22
代理机构
代理人
主权项
地址
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