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Answer:The CAT scan; LODOX (Low-Dosage X-ray machines); Stay Awake Stay Alive sleep detectors (for mining truck drivers); Wondifax adhesive putty; QDrum & Hippo Water Roller; the PlayPump (taking the work out of pumping water in rural Africa); the Boulder Buster (a device that safely and relatively easily breaks up boulders).
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15y ago

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