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发明名称
Sloper attachment for road grading machines
摘要
申请公布号
US1818434(A)
申请公布日期
1931.08.11
申请号
US19310517950
申请日期
1931.02.24
申请人
SCHEFFOLD CARL B
发明人
SCHEFFOLD CARL B.
分类号
E02F3/76
主分类号
E02F3/76
代理机构
代理人
主权项
地址
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