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发明名称
Procédé pour la fabrication de disques phase de lune.
摘要
申请公布号
CH290655(A)
申请公布日期
1953.05.15
申请号
CHD290655
申请日期
1951.06.08
申请人
CHAPPUIS,ALFRED
发明人
CHAPPUIS,ALFRED
分类号
G04B19/04;G04B19/20;G04D3/00
主分类号
G04B19/04
代理机构
代理人
主权项
地址
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