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发明名称
Reversible tooth having resilient retaining means
摘要
申请公布号
US3057091(A)
申请公布日期
1962.10.09
申请号
US19600023317
申请日期
1960.04.19
申请人
PETERSEN GERALD A M
发明人
PETERSEN GERALD A. M.
分类号
E02F9/28
主分类号
E02F9/28
代理机构
代理人
主权项
地址
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