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United States Utility Patents
4,266,540 - 4,266,549

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NumberTitle
4,266,540 Nasal oxygen therapy mask
4,266,541 Pressure hypodermic injector for intermittent vaccination
4,266,542 EVA Formulation having improved properties
4,266,543 Hypodermic needle protection means
4,266,544 Hypodermic syringe
4,266,545 Portable suction device for collecting fluids from a closed wound
4,266,546 Wrapped folded tampons
4,266,547 Laser knife
4,266,548 Apparatus for and method of utilizing energy to excise pathological tissue
4,266,549 Laser scalpel



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