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经营范围
发明名称
Herstellung von Graphitfilmen
摘要
申请公布号
DE752734(C)
申请公布日期
1952.09.29
申请号
DE1943H170613D
申请日期
1943.01.24
申请人
HOFMANN ULRICH DR.-ING.
发明人
HOFMANN ULRICH DR.-ING.
分类号
C01B31/00
主分类号
C01B31/00
代理机构
代理人
主权项
地址
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