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经营范围
发明名称
Safety shield
摘要
申请公布号
US1894867(A)
申请公布日期
1933.01.17
申请号
US19310559313
申请日期
1931.08.25
申请人
JOHNSON HIGH TEST OIL COMPANY
发明人
HOFFMAN EARL W.
分类号
B61D5/00
主分类号
B61D5/00
代理机构
代理人
主权项
地址
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