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发明名称
Snowplow
摘要
申请公布号
US1923444(A)
申请公布日期
1933.08.22
申请号
US19320588724
申请日期
1932.01.25
申请人
LA CLAIR NORMAN W
发明人
CLAIR NORMAN W. LA
分类号
E01H5/07
主分类号
E01H5/07
代理机构
代理人
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