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发明名称
JOINT PIECE FOR TUBULAR ELEMENTS
摘要
申请公布号
CA507754(A)
申请公布日期
1954.11.30
申请号
CAD507754
申请日期
申请人
DALMINE S.P.A.
发明人
ALBERTO CALBIANI
分类号
主分类号
代理机构
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