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发明名称
Appareil producteur de sons.
摘要
申请公布号
CH164692(A)
申请公布日期
1933.10.15
申请号
CHD164692
申请日期
1933.01.13
申请人
COMPAGNIE DES FREINS WESTINGHOUSE
发明人
WESTINGHOUSE COMPAGNIE DES FREINS
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主分类号
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