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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 5364629 | Device and method for enhanced administration of physostigmine Transdermal permeation of physostigmine free base and its chemical analogs are increased by the action of fatty acid esters of mono and difunctional alcohols.... | 11/15/1994 |
| 4838862 | Portable controlled release osmotic infusion device A portable controlled release osmotic infusion device, which can be activated on demand by the user, comprising a rigid housing containing: a. a fluid-imbibing assembly, comprising a solvent-containing chamber and a solute-containing chamber; the two chambers ... | 06/13/1989 |
| 4780320 | Controlled release drug delivery system for the periodontal pocket A controlled release drug delivery system for placement in the periodontal pocket. The system comprises a plurality of drug-containing microparticles or microcapsules, between 10 and 500 microns in size, suspended in a pharmaceutically acceptable carrier ... | 10/25/1988 |
