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发明名称
MEANS AND METHOD FOR THE PROTECTION OF DOCUMENTS AGAINST BEING PHOTOGRAPHED OR PHOTOCOPIED
摘要
申请公布号
IL80902(D0)
申请公布日期
1987.03.31
申请号
IL19860080902
申请日期
1986.12.08
申请人
YEHEZKEL REBUCK
发明人
分类号
G09C;(IPC1-7):G09C/
主分类号
G09C
代理机构
代理人
主权项
地址
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