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发明名称
Verfahren zur Anfertigung von Lehren, insbesondere von Ringlehren, und durch dieses Verfahren angefertigte Lehren
摘要
申请公布号
DE801863(C)
申请公布日期
1951.01.25
申请号
DE1948P024598D
申请日期
1948.12.14
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
BRANDT ADRIANUS
分类号
G01B1/00;G01B3/34;G01B3/36
主分类号
G01B1/00
代理机构
代理人
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