Hänvisningar finns i följande patent|
| US4201387 | 18 aug 1978 | 6 maj 1980 | | Balloon buster game | | US6216573 | 7 jun 1995 | 17 apr 2001 | Hydrocision, Inc. | Fluid jet cutting system | | US7717685 | 9 jan 2004 | 18 maj 2010 | HydroCision, Inc. | High pressure pumping cartridges for medical and surgical pumping and infusion applications |
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