Celebrity Inventors
Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 4363229 | Receptacle for paper currency, coins and the like A cash register tray for currency and coins having its own pivotal cover and lock whereby the tray can also be used as a portable cash box. A spring and electromagnet within the tray itself control opening and closing functions.... | 12/14/1982 |
| 4268076 | Cash box provided with a till A cash box provided with a till comprises a cash box, a till which can be slidably taken in and out of said cash box and is provided with an engage body on its rear end portion, a base plate fitted within said cash box, an electromagnetic means provided o... | 05/19/1981 |
| 4035792 | Cash register security system A cash register security system has a first latch normally adapted to engage and securely hold within a cash register a false drawer, a release device connected to the first latch for releasing the first latch from engaging and holding the false drawer wi... | 07/12/1977 |
