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经营范围
发明名称
Snowplow
摘要
申请公布号
US2498470(A)
申请公布日期
1950.02.21
申请号
US19480002060
申请日期
1948.01.13
申请人
WENNER IRA R
发明人
WENNER IRA R.
分类号
E01H5/02
主分类号
E01H5/02
代理机构
代理人
主权项
地址
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