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发明名称
Dispositif perfectionné pour la récupération des poulies de renvor des dispositifs d'extraction du produit abattu dans les mines
摘要
申请公布号
FR1115682(A)
申请公布日期
1956.04.27
申请号
FRD1115682
申请日期
1954.12.02
申请人
发明人
BRUN PAUL-MAURICE
分类号
E21F13/06
主分类号
E21F13/06
代理机构
代理人
主权项
地址
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EDDY-CURRENT REDUCTION GEAR
GAS SHUTOFF DEVICE
INK JET HEAD
DISPLAY DEVICE
DIGITAL DATA PACKET SWITCHING MODULE FOR ALLOCATING EMPTY PACKETS TO A CROSSPOINT SWITCH
CONTACT LENS SOLUTION CONTAINING CATIONIC GLYCOSIDE
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