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Individual
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Individual
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Priority to JP12544675ApriorityCriticalpatent/JPS5250003A/en
Publication of JPS5250003ApublicationCriticalpatent/JPS5250003A/en
PURPOSE: Adoption of a spring with an appropriate spring constant between a plunger and a plunger-operating screw in a small sized pump used for a strengthtesting jack for proportioning accurately a gain of the plunger and a operating oil pressure to each other.
COPYRIGHT: (C)1977,JPO&Japio
JP12544675A1975-10-201975-10-20Small-sized pump for uniform loading
PendingJPS5250003A
(en)