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5072752 | Kolchinsky | Dec 1991 | A |
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5878647 | Wilke et al. | Mar 1999 | A |
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Entry |
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A. Jansson and J. Palmberg, Separate Controls of Meter-in Meter-out Orifices in Mobile Hyraulic Systems SAE Technical Paper Series No. 901583, 1990, Society of Automotive Engineers Warrendale PA. |