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经营范围
发明名称
Apparatus for forming concrete pipes
摘要
申请公布号
US2863205(A)
申请公布日期
1958.12.09
申请号
US19530372742
申请日期
1953.08.06
申请人
LOCK JOINT PIPE COMPANY
发明人
SEAMAN FRANCIS EUGENE;GOTTSCHALK RUDOLF C.
分类号
B28B21/80
主分类号
B28B21/80
代理机构
代理人
主权项
地址
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