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发明名称
Toothbrush
摘要
申请公布号
US2290894(A)
申请公布日期
1942.07.28
申请号
US19390272517
申请日期
1939.05.08
申请人
FELIX RIVANOV
发明人
RIVANOV FELIX
分类号
A46B7/04
主分类号
A46B7/04
代理机构
代理人
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