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United States Utility Patents
4,972,530 - 4,972,539

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NumberTitle
4,972,530 Apparatus for automatically filling a pool with water
4,972,531 Jet nozzle assembly for bath tubs
4,972,532 Infant carrier
4,972,533 Combination comforter and sleeping bag
4,972,534 Flotation cover for mattresses
4,972,535 Reversible contoured body support mattress
4,972,536 Longitudinally laced posturized and/or contoured spring bedding product
4,972,537 Orthogonally composite prefabricated structural slabs
4,972,538 Launching apparatus for transportable bridges
4,972,539 Automatic-assembly bridge, ramp and the like



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