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经营范围
发明名称
Tube covering
摘要
申请公布号
US1969374(A)
申请公布日期
1934.08.07
申请号
US19310525682
申请日期
1931.03.27
申请人
KLEFFEL HARRISON E
发明人
KLEFFEL HARRISON E.
分类号
F22B37/10
主分类号
F22B37/10
代理机构
代理人
主权项
地址
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