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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7447784 | Authentication method using cellular phone in internet The present invention discloses an authentication method using a cellular phone in internet. According to the present invention, when connecting to internet or performing electronic commerce, the authentication is performed through the cellular phone in parallel wit... | 11/04/2008 |
| 7104549 | Steerable inline skate A steerable inline skate which allows user to change direction more easily and reduce the abrasion of wheels to thus lengthen the life of the wheels by allowing front and rear wheels 30 and 50 among a plurality of wheels arranged in a line to be steere... | 09/12/2006 |
| 6753684 | Inspection apparatus and method adapted to a scanning technique employing a rolling wire probe An inspection apparatus and method of electrode patterns using rolling wire probes, which includes a rolling wire rotating for performing a rolling contact sliplessly across the electrode patterns, and a control unit for controlling operations of the inspection appa... | 06/22/2004 |
