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经营范围
发明名称
Antifrost shield
摘要
申请公布号
US1890252(A)
申请公布日期
1932.12.06
申请号
US19300499181
申请日期
1930.12.01
申请人
SAMUEL FRANK
发明人
FRANK SAMUEL
分类号
B60J1/00
主分类号
B60J1/00
代理机构
代理人
主权项
地址
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