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发明名称
Breaker attachment for shovels
摘要
申请公布号
US2517980(A)
申请公布日期
1950.08.08
申请号
US19460707443
申请日期
1946.11.02
申请人
CORNETT WALTER V
发明人
CORNETT WALTER V.
分类号
E01C23/12;E02F3/30;E02F3/96;E02F5/30
主分类号
E01C23/12
代理机构
代理人
主权项
地址
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