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发明名称
Talking machine
摘要
申请公布号
US1838531(A)
申请公布日期
1931.12.29
申请号
US19300496277
申请日期
1930.11.17
申请人
HENRY DEVELOPMENTS LIMITED
发明人
COLLARO CHRISTOPHER
分类号
G11B19/00;G11B19/265
主分类号
G11B19/00
代理机构
代理人
主权项
地址
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