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发明名称
Talking picture apparatus
摘要
申请公布号
US1845236(A)
申请公布日期
1932.02.16
申请号
US19280311098
申请日期
1928.10.08
申请人
ANDREW LE ROY CHIPMAN
发明人
CHIPMAN HARRY E.
分类号
G03B31/00;G03B31/04;G03B31/06
主分类号
G03B31/00
代理机构
代理人
主权项
地址
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