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3702124
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Patent number 3,702,124
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Issue date Nov 7, 1972
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3192872
-
Patent number 3,192,872
-
Issue date Jul 6, 1965
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3012522
-
Patent number 3,012,522
-
Issue date Dec 12, 1961
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B61 - RAILWAYS
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2316747
-
Patent number 2,316,747
-
Issue date Apr 13, 1943
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B61 - RAILWAYS
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2047148
-
Patent number 2,047,148
-
Issue date Jul 7, 1936
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B61 - RAILWAYS
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2004676
-
Patent number 2,004,676
-
Issue date Jun 11, 1935
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B61 - RAILWAYS
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1955667
-
Patent number 1,955,667
-
Issue date Apr 17, 1934
-
B61 - RAILWAYS
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1794468
-
Patent number 1,794,468
-
Issue date Mar 3, 1931
-
B61 - RAILWAYS
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1604571
-
Patent number 1,604,571
-
Issue date Oct 26, 1926
-
B61 - RAILWAYS
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1506488
-
Patent number 1,506,488
-
Issue date Aug 26, 1924
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B61 - RAILWAYS
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1461593
-
Patent number 1,461,593
-
Issue date Jul 10, 1923
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B61 - RAILWAYS
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1450846
-
Patent number 1,450,846
-
Issue date Apr 3, 1923
-
B61 - RAILWAYS
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1436532
-
Patent number 1,436,532
-
Issue date Nov 21, 1922
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B61 - RAILWAYS
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1395559
-
Patent number 1,395,559
-
Issue date Nov 1, 1921
-
B61 - RAILWAYS
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1344947
-
Patent number 1,344,947
-
Issue date Jun 29, 1920
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B61 - RAILWAYS
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1254434
-
Patent number 1,254,434
-
Issue date Jan 22, 1918
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B61 - RAILWAYS
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1240232
-
Patent number 1,240,232
-
Issue date Sep 18, 1917
-
B61 - RAILWAYS
-
1230769
-
Patent number 1,230,769
-
Issue date Jun 19, 1917
-
B61 - RAILWAYS
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1144819
-
Patent number 1,144,819
-
Issue date Jun 29, 1915
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B61 - RAILWAYS
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1114544
-
Patent number 1,114,544
-
Issue date Oct 20, 1914
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B61 - RAILWAYS
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1097104
-
Patent number 1,097,104
-
Issue date May 19, 1914
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B61 - RAILWAYS
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1092951
-
Patent number 1,092,951
-
Issue date Apr 14, 1914
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B61 - RAILWAYS
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1074523
-
Patent number 1,074,523
-
Issue date Sep 30, 1913
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B61 - RAILWAYS