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Annular member forming apparatus
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Patent number 5,297,949
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Issue date Mar 29, 1994
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Bridgestone Corporation
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Takashi Yokoi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Annular member forming method
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Patent number 5,167,892
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Issue date Dec 1, 1992
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Bridgestone Corporation
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Takashi Yokoi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Variable contour rubber extruder
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Patent number 4,744,745
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Issue date May 17, 1988
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Bridgestone Corporation
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Jumei Harada
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Rotary roll-type rubber extruder
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Patent number 4,576,563
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Issue date Mar 18, 1986
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Bridgestone Corporation
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Jumei Harada
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Adjustable extrusion die assembly
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Patent number 4,470,790
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Issue date Sep 11, 1984
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Bridgestone Tire Company Limited
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Jumei Harada
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL