Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7305687 | Apparatus for supporting a storage container An apparatus for supporting a storage container upon removal from a storage compartment. A door is disposed proximate the storage compartment and is movable between an open position and a closed position. The door includes a mating feature. The storage container inc... | 12/04/2007 |
| 5781367 | Library for storing data-storage media A library for storing a cartridge of data-storage media includes a chassis having a plurality of walls that each have inner and outer sides. A cartridge storage receptacle is mounted to the inner side of a first of the walls and has a receptacle port faci... | 07/14/1998 |
| 5684654 | Device and method for storing and retrieving data A data storage unit includes multiple media processors that are each moveable between a transfer position and a corresponding standby position, and are able to receive a storage medium. A shuttle assembly moves a selected one of the media processors betwe... | 11/04/1997 |
| 5337297 | Magazine drawer manipulation system for a data carrier loader A loader data carriers, such as magnetic tape cartridges, of the type having a housing with a data reader therein which is movable over a magazine containing a number of data carriers, so as to be positionable above a selected data carrier for transfer be... | 08/09/1994 |
| 4742504 | Automatic disk cassette changer An automatic disk cassette changing apparatus employs a pair of cassette storage racks for holding a plurality of optical disk cassettes in an upright (vertical) position. A motor operated loading mechanism checks to see if an operator has properly loaded... | 05/03/1988 |