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发明名称
Concrete pipe seal groove forming mechanism
摘要
申请公布号
US3305908(A)
申请公布日期
1967.02.28
申请号
US19640375819
申请日期
1964.06.17
申请人
SUPERIOR PRODUCTS COMPANY
发明人
WOODS RANDELL C.;ENGLE THOMAS J.;CONLEY DANIEL J.;KIRCHNER RONALD P.;REX HOWARD T.
分类号
B28B21/76
主分类号
B28B21/76
代理机构
代理人
主权项
地址
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