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发明名称
Rallonge métallique de mine
摘要
申请公布号
FR1028255(A)
申请公布日期
1953.05.20
申请号
FRD1028255
申请日期
1950.11.22
申请人
REGIE DES MINES DE LA SARRE
发明人
VOIT ALBERT
分类号
B28B7/00;B28B7/34;E21D17/086
主分类号
B28B7/00
代理机构
代理人
主权项
地址
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