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United States Utility Patents
4,907,580 - 4,907,589

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NumberTitle
4,907,580 Eyelid splint with replaceable pad
4,907,581 Radioactive aerosol inhalation apparatus
4,907,582 Swivel clip attachment for diver breathing tube
4,907,583 Device in powder inhalators
4,907,584 Respiratory mask
4,907,585 Method for improving farsightedness
4,907,586 Method for reshaping the eye
4,907,587 Method for surgical correction of mixed and hypermetropic astigmatism and a device for carrying same into effect
4,907,588 Laser system with laser actuation means
4,907,589 Automatic over-temperature control apparatus for a therapeutic heating device



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