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发明名称
Biproximal tooth and interlocking key
摘要
申请公布号
US1753644(A)
申请公布日期
1930.04.08
申请号
US19270236245
申请日期
1927.11.28
申请人
EARLE BURDEN FRED
发明人
BURDEN FRED EARLE
分类号
主分类号
代理机构
代理人
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