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发明名称
Lantern slide and method of making the same
摘要
申请公布号
US1992128(A)
申请公布日期
1935.02.19
申请号
US19310550172
申请日期
1931.07.11
申请人
KEYSTONE VIEW COMPANY
发明人
MOSSMAN DONALD P.
分类号
G03B21/64
主分类号
G03B21/64
代理机构
代理人
主权项
地址
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