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发明名称
Portable display system
摘要
申请公布号
USRE30777(E)
申请公布日期
1981.10.20
申请号
US19790087992
申请日期
1979.10.25
申请人
发明人
分类号
A47G5/00;E04B2/74;E05D5/02;E06B3/968;G09F15/00
主分类号
A47G5/00
代理机构
代理人
主权项
地址
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