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Scale
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Patent number 4,844,192
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Issue date Jul 4, 1989
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Wirth Gallo Messtechnik AG
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Johannes Wirth
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G01 - MEASURING TESTING
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Precision balance
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Patent number 3,955,638
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Issue date May 11, 1976
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Voland Corporation
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Bernard Wasko
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G01 - MEASURING TESTING
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3831687
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Patent number 3,831,687
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Issue date Aug 27, 1974
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G01 - MEASURING TESTING
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3658143
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Patent number 3,658,143
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Issue date Apr 25, 1972
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G01 - MEASURING TESTING