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发明名称
Road scraper
摘要
申请公布号
US1918669(A)
申请公布日期
1933.07.18
申请号
US19320598825
申请日期
1932.03.14
申请人
SILVA MANUEL C
发明人
SILVA MANUEL C.
分类号
E02F3/64
主分类号
E02F3/64
代理机构
代理人
主权项
地址
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