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发明名称
Transparency mount and method of making same
摘要
申请公布号
US2495142(A)
申请公布日期
1950.01.17
申请号
US19480053735
申请日期
1948.10.09
申请人
SEARY EUGENE G
发明人
SEARY EUGENE G.
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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