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经营范围
发明名称
Orthodontic appliance
摘要
申请公布号
US2305916(A)
申请公布日期
1942.12.22
申请号
US19410395361
申请日期
1941.05.27
申请人
CALIFORNIA INSTITUTE RESEARCH FOUNDATION
发明人
ATKINSON SPENCER R.
分类号
A61C7/12
主分类号
A61C7/12
代理机构
代理人
主权项
地址
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