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经营范围
发明名称
Dental plate cleaning brush
摘要
申请公布号
US2043338(A)
申请公布日期
1936.06.09
申请号
US19340737243
申请日期
1934.07.27
申请人
SOMMERFELD OSCAR E
发明人
SOMMERFELD OSCAR E.
分类号
主分类号
代理机构
代理人
主权项
地址
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