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经营范围
发明名称
Elevating scraper
摘要
申请公布号
US3076275(A)
申请公布日期
1963.02.05
申请号
US19600072228
申请日期
1960.11.28
申请人
VESTAL BOOTHE MERRILL
发明人
BOOTHE MERRILL VESTAL
分类号
E02F3/40;E02F3/76
主分类号
E02F3/40
代理机构
代理人
主权项
地址
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