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Nikuni Machinery Ind. Co., Ltd. Patents
Nikuni Machinery Ind. Co., Ltd.
Kanagawa, JP
No. of patents:

Patent Number Title Of Patent Date Issued
4973222 Pump November 27, 1990
A pump wherein a discharge port for discharging a working fluid in the vicinity of a mechanical seal to the outside of a casing is provided so as to be communicated to the portion of the outer circumferential surface of a rotary shaft between an impeller and the mechanical seal. The mech

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