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发明名称
Snowplow
摘要
申请公布号
US2231268(A)
申请公布日期
1941.02.11
申请号
US19390258666
申请日期
1939.02.27
申请人
MARCUS F. CHURCH
发明人
HOARE DANIEL
分类号
E01H5/06
主分类号
E01H5/06
代理机构
代理人
主权项
地址
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