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发明名称
Verfahren und Vorrichtung zum Herstellen von Boizen mit angestauchtem Kopf, insbesondere Schraubenbolzen
摘要
申请公布号
DE926337(C)
申请公布日期
1955.04.14
申请号
DE1951H008975
申请日期
1951.07.03
申请人
HUGO PAUL GUSTAV SCHWARZ
发明人
HATEBUR FRIEDRICH BERNHARD
分类号
B21K1/44
主分类号
B21K1/44
代理机构
代理人
主权项
地址
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