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发明名称
Digging attachment for bulldozers
摘要
申请公布号
US2674818(A)
申请公布日期
1954.04.13
申请号
US19480055066
申请日期
1948.10.18
申请人
EARL CARNES
发明人
CARNES EARL
分类号
E02F3/815
主分类号
E02F3/815
代理机构
代理人
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地址
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