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经营范围
发明名称
Cast iron pipe
摘要
申请公布号
US1971385(A)
申请公布日期
1934.08.28
申请号
US19330669356
申请日期
1933.05.04
申请人
UNITED STATES PIPE AND FOUNDRY COMPANY
发明人
RUSSELL NORMAN F. S.;LANGENBERG FREDERICK C.
分类号
C22C37/10
主分类号
C22C37/10
代理机构
代理人
主权项
地址
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