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Yoshino; Kazunori
Kobe-Hyogo, JP
No. of patents:

Patent Number Title Of Patent Date Issued
6502500 Hydraulic system for a work machine January 7, 2003
In one aspect of the invention, the hydraulic system provided with the hydraulic pressure source and at least one meter-in spool valve. Each Spool valve has an inlet and an outlet. A hydraulic actuator is fluidly coupled with the spool valve outlet. A load hold check valve fluidly in

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