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发明名称
Kuenstlicher Lithographiestein
摘要
申请公布号
DE640846(C)
申请公布日期
1937.06.10
申请号
DE1935SC07469D
申请日期
1935.07.07
申请人
GERTRUDE SCHLESS GEB. WINKLER
发明人
分类号
B41N1/02
主分类号
B41N1/02
代理机构
代理人
主权项
地址
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