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经营范围
发明名称
Film de rontgen à deux couches sensibles
摘要
申请公布号
FR728559(A)
申请公布日期
1932.07.07
申请号
FRD728559
申请日期
1931.09.25
申请人
发明人
JAEGER WALTER
分类号
G03C5/16
主分类号
G03C5/16
代理机构
代理人
主权项
地址
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