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经营范围
发明名称
Snowplow structure
摘要
申请公布号
US2482213(A)
申请公布日期
1949.09.20
申请号
US19440549151
申请日期
1944.08.12
申请人
RITCHIE JOHN R
发明人
RITCHIE JOHN R.
分类号
E01H5/09
主分类号
E01H5/09
代理机构
代理人
主权项
地址
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