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发明名称
Improvements relating to the production of combined sound and kinematograph picture films
摘要
申请公布号
GB363304(A)
申请公布日期
1931.12.08
申请号
GB19300020708
申请日期
1930.07.08
申请人
TOBIS TONBILD-SYNDIKAT AKTIENGESELLSCHAFT
发明人
分类号
G03B31/00
主分类号
G03B31/00
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