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发明名称
Tooth point
摘要
申请公布号
US2251487(A)
申请公布日期
1941.08.05
申请号
US19390268254
申请日期
1939.04.17
申请人
HOSMER CHESTER C;LAUNDER ERNIE L
发明人
HOSMER CHESTER C.;LAUNDER ERNIE L.
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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