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发明名称
Improvements in the manufacture of concrete conduit
摘要
申请公布号
GB836186(A)
申请公布日期
1960.06.01
申请号
GB19580040969
申请日期
1958.12.18
申请人
GAGNIE ENTERPRISES, INC.
发明人
GAGNE ARCHIE R.
分类号
B28B21/74;B28B21/82
主分类号
B28B21/74
代理机构
代理人
主权项
地址
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