Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7338843 | Method for producing an electronic component, especially a memory chip A method for producing an electronic component, especially a memory chip, using a laser-induced correction to equalize an integrated circuit by means of at least one laser via in a layer at least partially covering the circuit. The component comprises a rewiring of ... | 03/04/2008 |