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United States Utility Patents
4,220,140 - 4,220,149

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NumberTitle
4,220,140 Solar receiver
4,220,141 Portable solar cooker
4,220,142 Behavioral shaping device for eliminating nocturnal sounds
4,220,143 Therapeutic apparatus
4,220,144 Oral hygiene device
4,220,145 Hydrotherapy apparatus
4,220,146 Biplanar joint distractor
4,220,147 Partially disassemblable traction sling
4,220,148 Knee stabilizer
4,220,149 Arm sling



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