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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 |
| 5076949 | Novel perfluorinated polyethers and process for their preparation Perfluorinated polyethers having the formula Rf O--(CF2 CF2 O)n --R'f wherein n is an integer of 1-11 and each of Rf and R'f is a perfluorinated C1 -C5 -alkyl radical... | 12/31/1991 |
