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经营范围
发明名称
Dental apparatus
摘要
申请公布号
US2239294(A)
申请公布日期
1941.04.22
申请号
US19380185081
申请日期
1938.01.15
申请人
NATHAN OPOTOW
发明人
OPOTOW NATHAN
分类号
A61C19/05
主分类号
A61C19/05
代理机构
代理人
主权项
地址
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