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发明名称
LETTERBOX SIGNALLING DEVICE
摘要
申请公布号
AU567234(B2)
申请公布日期
1987.11.12
申请号
AU19860056089
申请日期
1985.04.29
申请人
MORRIS, G.B.,
发明人
GORDON BRUCE MORRIS
分类号
A47G29/122;(IPC1-7):A47G29/122
主分类号
A47G29/122
代理机构
代理人
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地址
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