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发明名称
APPAREIL A MARQUER LES BILLETTES ET PROCEDE DE MARQUAGE
摘要
申请公布号
BE771253(A1)
申请公布日期
1972.02.14
申请号
BE19710771253
申请日期
1971.08.12
申请人
USS ENGINEERS AND CONSULTANTS INC., 600 GRANT STREET, PITTSBURGH, PENNSYLVANIA, (E.U.A.),
发明人
W.B. RUDOV.
分类号
B21C51/00;B21K27/06;B44B5/02;(IPC1-7):B22D/
主分类号
B21C51/00
代理机构
代理人
主权项
地址
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