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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7542570 | Information encryption transmission/reception method An information encrypting transmission and reception method in an information transmission and reception network composed of a plurality of senders and receivers having computers being connected and communicating each other via a web network and a data center having... | 06/02/2009 |
