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3212337
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Patent number 3,212,337
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H01 - BASIC ELECTRIC ELEMENTS
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3132518
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Issue date May 12, 1964
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G01 - MEASURING TESTING
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3122728
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C01 - INORGANIC CHEMISTRY
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3091393
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Patent number 3,091,393
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F24 - HEATING RANGES VENTILATING
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3064245
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Patent number 3,064,245
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B82 - NANO-TECHNOLOGY
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3007029
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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2944423
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Patent number 2,944,423
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Issue date Jul 12, 1960
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G01 - MEASURING TESTING
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2786116
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Patent number 2,786,116
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H01 - BASIC ELECTRIC ELEMENTS
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2548941
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Patent number 2,548,941
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G05 - CONTROLLING REGULATING
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2524886
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G05 - CONTROLLING REGULATING
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2271307
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G05 - CONTROLLING REGULATING
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2040762
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G05 - CONTROLLING REGULATING
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2007384
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Patent number 2,007,384
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H01 - BASIC ELECTRIC ELEMENTS
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1978362
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Patent number 1,978,362
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G05 - CONTROLLING REGULATING
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1977570
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Patent number 1,977,570
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G05 - CONTROLLING REGULATING
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1957085
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H01 - BASIC ELECTRIC ELEMENTS
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1932988
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H01 - BASIC ELECTRIC ELEMENTS
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1913920
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Patent number 1,913,920
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1885479
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Patent number 1,885,479
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1881978
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G05 - CONTROLLING REGULATING
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1856334
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1841326
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H01 - BASIC ELECTRIC ELEMENTS
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1822408
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H01 - BASIC ELECTRIC ELEMENTS
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1818061
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Patent number 1,818,061
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1797258
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Patent number 1,797,258
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1765387
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Patent number 1,765,387
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1757314
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H01 - BASIC ELECTRIC ELEMENTS
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1719851
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G01 - MEASURING TESTING