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经营范围
发明名称
Procédé de fabrication, à partir d'une barre d'acier trempée et d'une manière continue, des forets hélicoïdaux ou analogues et machine automatique pour la mise enceuvre du procédé
摘要
申请公布号
FR836107(A)
申请公布日期
1939.01.11
申请号
FRD836107
申请日期
1937.09.20
申请人
发明人
FOUQUET EUGENE
分类号
B24B19/04
主分类号
B24B19/04
代理机构
代理人
主权项
地址
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