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发明名称
DOCUMENT IDENTIFICATION AND PROTECTION SYSTEM
摘要
申请公布号
US3447818(A)
申请公布日期
1969.06.03
申请号
USD3447818
申请日期
1966.08.09
申请人
ARMAND L. DE PIZZOL
发明人
ARMAND L. DE PIZZOL
分类号
G07C9/00;(IPC1-7):B42D15/00
主分类号
G07C9/00
代理机构
代理人
主权项
地址
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