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发明名称
Draining device
摘要
申请公布号
US2337292(A)
申请公布日期
1943.12.21
申请号
US19410398859
申请日期
1941.06.19
申请人
CHAMPION HARRY M
发明人
CHAMPION HARRY M.
分类号
F16N37/00
主分类号
F16N37/00
代理机构
代理人
主权项
地址
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