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发明名称
Photographic copying
摘要
申请公布号
US2219667(A)
申请公布日期
1940.10.29
申请号
US19340742078
申请日期
1934.08.30
申请人
EELECTRO-COPYST, INC.
发明人
SZASZ GEZA
分类号
G03B27/02;G03C5/10
主分类号
G03B27/02
代理机构
代理人
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地址
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