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发明名称
Procédé pour le poinçonnage d'une étroite fente dans une plaque de métal
摘要
申请公布号
FR1416210(A)
申请公布日期
1965.10.29
申请号
FR19640996849
申请日期
1964.11.30
申请人
N. V. METAALWARENFABRIEK
发明人
分类号
B21D31/02;F23D14/46
主分类号
B21D31/02
代理机构
代理人
主权项
地址
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