Invention Grant
US08998591B2 Pump device and methods for making the same 有权
泵装置及其制造方法

Pump device and methods for making the same
Abstract:
Bellow actuated pump devices for dispensing a product from a container may include a bellow and a base or a bellow, a base, and a valve wherein actuation of the bellow dispenses a product and the de-actuation of the bellow refills the pump for the next actuation.
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