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经营范围
发明名称
Projecting lantern
摘要
申请公布号
US2285915(A)
申请公布日期
1942.06.09
申请号
US19410421010
申请日期
1941.11.29
申请人
DUTTON CHARLES F
发明人
DUTTON CHARLES F.
分类号
G03B21/10
主分类号
G03B21/10
代理机构
代理人
主权项
地址
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