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US4892778A Juxtaposed laminated arrangement 失效
并置层叠布置

Juxtaposed laminated arrangement
摘要:
A dispenser is enclosed for delivering a beneficial agent to an enviroment of use. The dispenser comprising a wall that surrounds an internal space comprising a first mean in the dispenser for changing from a dispenser state to an environment of use state on leaving the dispenser, a beneficial agent in the first means, and a second means in the dispenser for aiding in displacing the first means from the dispenser.
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