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Mistuo Yoshimura
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Yamato, JP
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last 30 patents
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Patent Grant
Backup ring for hydraulic apparatus seals
Patent number
4,468,041
Issue date
Aug 28, 1984
Nippon Oil Seal Industry Co., Ltd.
Mistuo Yoshimura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...