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发明名称
Verfahren zur Herstellung von Holzschrauben verschiedener Gewindelaengen und Gewinde-steigungen auf einer Gewindeschneidmaschine mit sich drehendem, zahnradaehnlichem Schneidwerkzeug
摘要
申请公布号
DE493239(C)
申请公布日期
1930.03.06
申请号
DE1928K112282D
申请日期
1928.12.01
申请人
LEONHARD KOHLBAUER
发明人
分类号
B23G1/12
主分类号
B23G1/12
代理机构
代理人
主权项
地址
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