Card file device
The present invention relates to a card file device. More particualrly, the present invention relates to a card file device which will be converted to a display device conveniently. A card file device has a base board, a jacket, an envelopement, and a plurality of envelopes. The base board has a plu...
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| Main Author | |
|---|---|
| Format | Patent |
| Language | English |
| Published |
20.01.2004
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| Online Access | Get full text |
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