Bizarre Patents
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 |
| 6065721 | Switch clearing system An sir blowing system for use in deeping railroad track switches clear of snow utilizes flexible tubes, preferebly of rubber or plastic, located transversely beneath the main tracks, and connecting with resilient nozzles to direct a high flow of air in th... | 05/23/2000 |
| 5125603 | Sliding chair, sliding plate and ribbed plate, respectively, for railway switches or railway crossings A railway structure for a sliding chair (2), a sliding plate and a ribbed plate (1), respectively, for railway switches or railway crossings. The structure includes friction-reducing sliding members (4, 5) of synthetic plastic material being releasably mo... | 06/30/1992 |
| 4251042 | Railway double tongue switch A double tongue switch comprises a pair of identical and interchangeable switch assemblies, each of which has a rectangular body with vertical outer walls. Each switch tongue includes a pair of full-width railheads of increased thickness. Each body includ... | 02/17/1981 |
