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发明名称
Paper-roll holder
摘要
申请公布号
US1761464(A)
申请公布日期
1930.06.03
申请号
US19250039751
申请日期
1925.06.26
申请人
PHOTOSTAT CORPORATION
发明人
CAPS ARTHUR W.
分类号
G03B27/58
主分类号
G03B27/58
代理机构
代理人
主权项
地址
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