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Pressure measuring device
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Patent number 5,886,268
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Issue date Mar 23, 1999
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Reologica Instruments AB
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Sven-Erik Larsson
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G01 - MEASURING TESTING
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3739798
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Patent number 3,739,798
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Issue date Jun 19, 1973
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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3613441
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Patent number 3,613,441
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Issue date Oct 19, 1971
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G01 - MEASURING TESTING
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3355936
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Patent number 3,355,936
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Issue date Dec 5, 1967
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G01 - MEASURING TESTING
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3320809
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Patent number 3,320,809
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Issue date May 23, 1967
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G01 - MEASURING TESTING
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3139750
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Patent number 3,139,750
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Issue date Jul 7, 1964
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G01 - MEASURING TESTING
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2643055
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Patent number 2,643,055
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Issue date Jun 23, 1953
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G06 - COMPUTING CALCULATING COUNTING