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Railroad hot box detector
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Patent number 4,659,043
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Issue date Apr 21, 1987
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Servo Corporation of America
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Cornelius A. Gallagher
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Hotbox detector
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Patent number 4,068,811
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Issue date Jan 17, 1978
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General Electric Company
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Paul W. Caulier
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G01 - MEASURING TESTING
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2502318
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Patent number 2,502,318
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Issue date Mar 28, 1950
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2435343
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Patent number 2,435,343
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Issue date Feb 3, 1948
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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2003358
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Patent number 2,003,358
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Issue date Jun 4, 1935
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G08 - SIGNALLING
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1559022
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Patent number 1,559,022
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Issue date Oct 27, 1925
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G01 - MEASURING TESTING
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1441307
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Patent number 1,441,307
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Issue date Jan 9, 1923
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G01 - MEASURING TESTING
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1318369
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Patent number 1,318,369
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Issue date Oct 14, 1919
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G08 - SIGNALLING
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1239450
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Patent number 1,239,450
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Issue date Sep 11, 1917
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H01 - BASIC ELECTRIC ELEMENTS
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1208549
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Patent number 1,208,549
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Issue date Dec 12, 1916
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A62 - LIFE-SAVING FIRE-FIGHTING
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1018253
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Patent number 1,018,253
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Issue date Feb 20, 1912
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1015118
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Patent number 1,015,118
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Issue date Jan 16, 1912
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A63 - SPORTS GAMES AMUSEMENTS
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838385
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Patent number 838,385
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Issue date Dec 11, 1906
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G08 - SIGNALLING
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758819
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Patent number 758,819
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Issue date May 3, 1904
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G01 - MEASURING TESTING
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308192
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Patent number 308,192
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Issue date Nov 18, 1884
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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117682
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Patent number 117,682
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Issue date Aug 1, 1871
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G08 - SIGNALLING