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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 5206994 | Collapsible razor A collapsible razor having a handle in the form of a hollow body with a blade cartridge support pivotally mounted thereon to be foldable into the handle body and thus completely encased therein. A container comprising a plurality of chambers is mounted or... | 05/04/1993 |
| 5029390 | Safety razor apparatus An apparatus including elongate handle formed with a hollow cavity directed interiorly of the lower end of the handle wherein the hollow cavity includes an internally threaded lower end cooperative with a threaded shaft of a plug member to selectively con... | 07/09/1991 |
| 5009004 | Foldable razor assembly A foldable razor assembly essentially comprising a blade support, a first mounting element and a second mounting element which mounted to each other, an inner cylinder, an outer cylinder and a cylinder recess to form the handle for the razor assembly. The... | 04/23/1991 |
| 4831729 | Razor set A razor set comprises an L-shaped handle having one leg with slides for receiving a razor head, and the other leg to be grasped as a handle by the user. The other leg serves to support a razor head or a receptacle for a razor head to be detachably slidabl... | 05/23/1989 |
| 4776091 | Razor with blade replacement cartridge A razor having a hollow handle housing a cartridge adapted to receive replacement blade units. The cartridge includes channels having specially configured holding portions enabling extraction of a blade unit by a razor head in a manner similar to that use... | 10/11/1988 |
| 4332321 | Shaving kit A portable shaving kit includes a tubular member having a socket opening and one end with a support arm having a socket within the socket opening. The support arm is movable between stored and operative positions and is held in two positions by a spring-b... | 06/01/1982 |
| 4182031 | Razor with handle to store a blade unit or cartridge The razor is of the type which has on its head a generally T-shaped fitting on which a conventional razor blade unit can be releasably mounted by urging the fitting into a correspondingly shaped channel or recess formed in the back of the blade unit. The ... | 01/08/1980 |
