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发明名称
VERFAHREN ZUM HERSTELLEN VON SPIRALFEDERROLLEN UND NACH DIESEM VERFAHREN HERGESTELLTE SPIRALFEDERROLLEN
摘要
申请公布号
DE2523573(B2)
申请公布日期
1977.03.17
申请号
DE19752523573
申请日期
1975.05.28
申请人
发明人
分类号
G04B17/34;(IPC1-7):G04B17/32
主分类号
G04B17/34
代理机构
代理人
主权项
地址
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