OSMOTIC DISPENSER
An osmotic active agent dispenser is comprised of (1) a first compartment of relatively impervious material containing an active agent and provided with an aperture for releasing said active agent to the exterior of the dispenser; (2) a second compartment of controlled permeability to water containi...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
15.05.1973
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Subjects | |
Online Access | Get full text |
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