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United States Utility Patents
4,979,930 - 4,979,939

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NumberTitle
4,979,930 Endless belt for transmission
4,979,931 Differential gear and control system for motor vehicles having a single driven axle and at least one undriven axle
4,979,932 Apparatus and method for sealing box blanks
4,979,933 Reclosable bag
4,979,934 Card feeding and folding apparatus
4,979,935 Method of photodynamic therapy employing electron trapping material
4,979,936 Autologous biologic pump motor
4,979,937 Method and apparatus involving intercostal and lumbar perfusion
4,979,938 Method of iontophoretically treating acne, furuncles and like skin disorders
4,979,939 Atherectomy system with a guide wire



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