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经营范围
发明名称
Safety tube
摘要
申请公布号
US2168514(A)
申请公布日期
1939.08.08
申请号
US19380231375
申请日期
1938.09.23
申请人
BURGESS DARROW
发明人
DARROW BURGESS
分类号
B60C5/20
主分类号
B60C5/20
代理机构
代理人
主权项
地址
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