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发明名称
Procédé de tirage de films phonographiques à densité constante et dispositif réalisant ledit procédé
摘要
申请公布号
FR775516(A)
申请公布日期
1934.12.31
申请号
FRD775516
申请日期
1933.09.28
申请人
发明人
NUBLAT RENE, LEON, ADOLPHE
分类号
G03C5/14
主分类号
G03C5/14
代理机构
代理人
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