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 |
| 6055848 | Air quality measuring device The present invention provides a device for measuring air quality. The device includes at least one sensor with a sensor resistance which is converted via signal processing into an output signal, the gas sensing or air content sensing device having its se... | 05/02/2000 |
| 4935599 | Air-conditioning device, especially for railroad cars The air-conditioning device, in particular for a railroad car (2), includes a fan (1) for blowing cold or heated air into a conduit (4), the upper portion of which opens into a space (7) delimited by two parallel walls (8, 9) which are adjacent to the lat... | 06/19/1990 |
