DISPENSING DEVICE
A dispenser, particularly useful as a pump for viscous material such as toothpaste has, in one embodiment, a body (15), a spout (13) at the top of the body, a tube (20) disposed vertically within the body aligned to register with the spout, a piston (17) surrounding the tube below the top and a spri...
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Format: | Patent |
Sprache: | eng |
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