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Fluid control apparatus
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Patent number 6,273,139
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Issue date Aug 14, 2001
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Fujikin, Inc.
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Tadahiro Ohmi
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Shutoff-opening device
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Patent number 5,983,933
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Issue date Nov 16, 1999
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Ohmi; Tadahiro
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Tadahiro Ohmi
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Thrust ring for pipe joints
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Patent number 5,308,124
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Issue date May 3, 1994
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Fujikin Incorporated
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Michio Yamaji
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...