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发明名称
Improvements in the manufacture of colour films having sound records
摘要
申请公布号
GB362876(A)
申请公布日期
1931.12.08
申请号
GB19300017247
申请日期
1930.06.04
申请人
I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT
发明人
分类号
G03C7/22
主分类号
G03C7/22
代理机构
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