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经营范围
发明名称
Stone spreader
摘要
申请公布号
US1811324(A)
申请公布日期
1931.06.23
申请号
US19300426895
申请日期
1930.02.08
申请人
LOCKARD ARTHUR E
发明人
LOCKARD ARTHUR E.
分类号
E01C23/09
主分类号
E01C23/09
代理机构
代理人
主权项
地址
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