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Gyro compass
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Patent number 6,131,297
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Issue date Oct 17, 2000
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Tokimec, Inc.
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Kanshi Yamamoto
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G01 - MEASURING TESTING
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Anti-rolling apparatus
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Patent number 6,019,056
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Issue date Feb 1, 2000
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Tokimec Inc.
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Toru Maeda
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Gyro compass
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Patent number 4,879,918
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Issue date Nov 14, 1989
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Tokyo Keiki Co., Ltd.
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Takeshi Hojo
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G01 - MEASURING TESTING
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Gyro apparatus
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Patent number 4,653,325
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Issue date Mar 31, 1987
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Kabushikikaisha Tokyo Keiki
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Takeshi Hojo
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G01 - MEASURING TESTING
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Accelerometer
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Patent number 4,649,748
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Issue date Mar 17, 1987
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Kabushikikaisha Tokyo Keiki
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Michio Fukano
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G01 - MEASURING TESTING
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Accelerometer
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Patent number 4,512,193
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Issue date Apr 23, 1985
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Kabushiki Kaisha Tokyo Keiki
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Michio Fukano
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G01 - MEASURING TESTING
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Bearing apparatus
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Patent number 4,444,442
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Issue date Apr 24, 1984
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K.K. Tokyo Keiki
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Takeshi Hojo
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G01 - MEASURING TESTING
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Bearing apparatus
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Patent number 4,336,967
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Issue date Jun 29, 1982
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K.K. Tokyo Keiki
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Takeshi Hojo
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G01 - MEASURING TESTING