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 |
| 4314431 | Mortar-less interlocking building block system A set of interlocking building blocks capable of being assembled with each other forming wall structures without requiring mortar or any other binder. The set consists of four types of blocks and one lintel rib which are capable of forming wall structures... | 02/09/1982 |
