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经营范围
发明名称
Chain pipe cover
摘要
申请公布号
US2555696(A)
申请公布日期
1951.06.05
申请号
US19500162498
申请日期
1950.05.17
申请人
LOCKSTAD COMPANY
发明人
KROGSTAD EDWARD L.;LOCKWOOD GEORGE B.
分类号
B63B21/14
主分类号
B63B21/14
代理机构
代理人
主权项
地址
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