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发明名称
Photographic cylindrical composing apparatus having auxiliary supports
摘要
申请公布号
US2497991(A)
申请公布日期
1950.02.21
申请号
US19470745581
申请日期
1947.05.02
申请人
HUEBNER WILLIAM C
发明人
HUEBNER WILLIAM C.
分类号
G03F7/24
主分类号
G03F7/24
代理机构
代理人
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