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发明名称
Portable sound picture apparatus
摘要
申请公布号
US1936345(A)
申请公布日期
1933.11.21
申请号
US19300477199
申请日期
1930.08.23
申请人
UNITED AIRCRAFT PRODUCTS, INC.
发明人
BAUCH WILLIAM H.
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
主权项
地址
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