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发明名称
Internal lock pin for scarifier teeth
摘要
申请公布号
US2688475(A)
申请公布日期
1954.09.07
申请号
US19490123158
申请日期
1949.10.24
申请人
SMALL EVERETT T
发明人
SMALL EVERETT T.
分类号
A01B15/02;E02F9/28;F16B21/12;F16B21/20
主分类号
A01B15/02
代理机构
代理人
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地址
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