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经营范围
发明名称
Digger tooth
摘要
申请公布号
US1951988(A)
申请公布日期
1934.03.20
申请号
US19310583863
申请日期
1931.12.30
申请人
CORTRIGHT MCKEEL VAN
发明人
MCKEEL VAN CORTRIGHT
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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