发明名称 |
LAMINATED RECORD CARD COMPRISING INTERNAL LAYER OF HIGH TENSILE STRANDS |
摘要 |
A record card made from a body of material so formed as to provide security against unauthorized use and coding. High tensile strands distributed within an internal layer of the card limit punch hole recording to a particular computer program as well as to increase the strength of the card and form internal surfaces for reception of printed matter and magnetic read out coatings.
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申请公布号 |
US3662156(A) |
申请公布日期 |
1972.05.09 |
申请号 |
USD3662156 |
申请日期 |
1968.09.16 |
申请人 |
STRATEGIC AUTOMATED SYSTEMS INC. |
发明人 |
GREGORY GROSBARD |
分类号 |
B42D15/10;B44F1/12;G06K19/12;(IPC1-7):G06K19/08;B32B5/08 |
主分类号 |
B42D15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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