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经营范围
发明名称
Sponge
摘要
申请公布号
US2237793(A)
申请公布日期
1941.04.08
申请号
US19390279685
申请日期
1939.06.17
申请人
RUDD MARTIN W
发明人
RUDD MARTIN W.
分类号
A47L13/23;B60S3/04
主分类号
A47L13/23
代理机构
代理人
主权项
地址
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