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经营范围
发明名称
SNOW REMOVAL DEVICE
摘要
申请公布号
US3473838(A)
申请公布日期
1969.10.21
申请号
USD3473838
申请日期
1967.12.20
申请人
WILLIAM J. RANKIN
发明人
WILLIAM J. RANKIN
分类号
E01H5/02;(IPC1-7):E01H5/02;A01B1/02
主分类号
E01H5/02
代理机构
代理人
主权项
地址
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