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Interchangeable cavity ring for CD molds
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Patent number 6,533,569
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Issue date Mar 18, 2003
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Richter Precision, Inc.
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J. Hans Richter
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Thermally conductive hub bushing
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Patent number 6,402,502
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Issue date Jun 11, 2002
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Richter Precision, Inc.
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Michael J. Selems
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL