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经营范围
发明名称
Mécanisme de transport du film, notamment pour appareils de reproduction d'épures de séismogrammes du type utilisé en prospection géophysique
摘要
申请公布号
FR1213419(A)
申请公布日期
1960.03.31
申请号
FRD1213419
申请日期
1957.01.23
申请人
GULF RESEARCH & DEVELOPMENT COMPANY
发明人
分类号
G03B1/18
主分类号
G03B1/18
代理机构
代理人
主权项
地址
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