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发明名称
Sound picture projector
摘要
申请公布号
US1955801(A)
申请公布日期
1934.04.24
申请号
US19290412957
申请日期
1929.12.10
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
GLUNT OMER M.;GENT EDGAR W.
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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