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发明名称
Liquid suction device
摘要
申请公布号
US2306212(A)
申请公布日期
1942.12.22
申请号
US19410385082
申请日期
1941.03.25
申请人
WILLIAM GERSTMANN
发明人
GERSTMANN WILLIAM
分类号
A47L7/04;A47L9/18
主分类号
A47L7/04
代理机构
代理人
主权项
地址
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