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经营范围
发明名称
GRADER BLADE
摘要
申请公布号
US3431980(A)
申请公布日期
1969.03.11
申请号
USD3431980
申请日期
1966.04.01
申请人
MARSHALL V. SINGER JR.
发明人
MARSHALL V. SINGER JR.
分类号
A01B11/00;(IPC1-7):A01B35/04;A01B35/10
主分类号
A01B11/00
代理机构
代理人
主权项
地址
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