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发明名称
Procédé et dispositif de cintrage préalable des ressorts à lemes pour appareils de télécommunication
摘要
申请公布号
FR1054376(A)
申请公布日期
1954.02.10
申请号
FRD1054376
申请日期
1952.02.02
申请人
发明人
VIGREN STEN DANIEL;BROBERG WALTER OTTO WILHELM;NOREN NILS TORE
分类号
B21D11/06;B21F3/00
主分类号
B21D11/06
代理机构
代理人
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地址
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