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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 6875011 | Lighter and flint holder A flint is easy to take out of a flint holder, which can be carried in a lighter. The flint holder consists of a holding part in the form of a thin plate, a fitting part and a molded hinge part, which integrally connects the holding and fitting parts in such a manne... | 04/05/2005 |
| 6186774 | Modular butane lighter A lighter assembly especially suitable for burning butane gas as a fuel is provided in modular form which consists essentially of two unitary subassemblies which may be detachably mounted together to form the assembled lighter. The lighter assembly, which... | 02/13/2001 |
| 5919037 | Fire starting tool A hand operated fire starting tool for use as a survival aid and in general outdoor activities such as camping. The tool includes a case, a pyrophoric element mounted to the case for reciprocal and rotational movement between a stored position and an oper... | 07/06/1999 |
| 5129819 | Cigarette lighter A cigarette lighter comprises a housing bounding an inner space, and an actuating unit accommodated in the space and including a push-button, a lever mechanism connected with the push-button, a strike flint, a striking wheel connected with the lever mecha... | 07/14/1992 |
| 4865541 | Ignition stone container of cigarette lighter An ignition stone container which encloses ignition stones to be used in a cigarette lighter when an ignition stone in use is abraded and to be exchanged. A projection to rotate a locking screw threadedly attached to an ignition stone taking-in portion in... | 09/12/1989 |
| 4596525 | Dual purpose lighter Cigarette type lighter has the ability to work as a conventional gas lighter or without fuel by producing cinders from a flint. A lever along the side of the lighter allows selection of mode of operation. Flints may be stored within the lighter housing.... | 06/24/1986 |
| 4113422 | Smoker's lighter A smoker's lighter of flat elongate shape has an inset bottom in one of its narrow ends. In the bottom are two orifices, one with a filling valve and the other equipped for the adjustment or replacement of an element such as a flint. The bottom has a cove... | 09/12/1978 |
