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发明名称
Snowplow
摘要
申请公布号
US1977871(A)
申请公布日期
1934.10.23
申请号
US19320634660
申请日期
1932.09.24
申请人
EDWARD L. BASS
发明人
CHRISTOPHERSON CALMER E.
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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