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发明名称
Sectional hinged fold holder
摘要
申请公布号
US2474552(A)
申请公布日期
1949.06.28
申请号
US19450608069
申请日期
1945.07.31
申请人
STEINMEYER FREDERICK W
发明人
STEINMEYER FREDERICK W.
分类号
A47H13/14
主分类号
A47H13/14
代理机构
代理人
主权项
地址
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