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经营范围
发明名称
Combination sound and slide projector
摘要
申请公布号
US3359665(A)
申请公布日期
1967.12.26
申请号
US19650449501
申请日期
1965.04.20
申请人
GERRY MARTIN E
发明人
GERRY MARTIN E.
分类号
G03B31/06
主分类号
G03B31/06
代理机构
代理人
主权项
地址
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