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2933661
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Patent number 2,933,661
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Issue date Apr 19, 1960
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H01 - BASIC ELECTRIC ELEMENTS
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2872357
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Patent number 2,872,357
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Issue date Feb 3, 1959
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H01 - BASIC ELECTRIC ELEMENTS
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2872358
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Patent number 2,872,358
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Issue date Feb 3, 1959
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H01 - BASIC ELECTRIC ELEMENTS
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2853663
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Patent number 2,853,663
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Issue date Sep 23, 1958
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H01 - BASIC ELECTRIC ELEMENTS
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2828453
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Patent number 2,828,453
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Issue date Mar 25, 1958
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H01 - BASIC ELECTRIC ELEMENTS
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2787745
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Patent number 2,787,745
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Issue date Apr 2, 1957
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H01 - BASIC ELECTRIC ELEMENTS
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2669767
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Patent number 2,669,767
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Issue date Feb 23, 1954
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H01 - BASIC ELECTRIC ELEMENTS
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2655626
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Patent number 2,655,626
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Issue date Oct 13, 1953
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H01 - BASIC ELECTRIC ELEMENTS
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2510361
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Patent number 2,510,361
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Issue date Jun 6, 1950
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H01 - BASIC ELECTRIC ELEMENTS
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2504226
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Patent number 2,504,226
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Issue date Apr 18, 1950
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H01 - BASIC ELECTRIC ELEMENTS
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2496432
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Patent number 2,496,432
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Issue date Feb 7, 1950
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G11 - INFORMATION STORAGE
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2488369
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Patent number 2,488,369
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Issue date Nov 15, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2484204
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Patent number 2,484,204
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Issue date Oct 11, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2481739
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Patent number 2,481,739
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Issue date Sep 13, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2479301
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Patent number 2,479,301
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Issue date Aug 16, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2476989
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Patent number 2,476,989
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Issue date Jul 26, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2471898
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Patent number 2,471,898
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Issue date May 31, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2468527
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Patent number 2,468,527
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Issue date Apr 26, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2468131
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Patent number 2,468,131
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Issue date Apr 26, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2468003
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Patent number 2,468,003
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Issue date Apr 19, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2462917
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Patent number 2,462,917
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Issue date Mar 1, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2459886
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Patent number 2,459,886
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Issue date Jan 25, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2459848
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Patent number 2,459,848
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Issue date Jan 25, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2458013
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Patent number 2,458,013
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Issue date Jan 4, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2457169
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Patent number 2,457,169
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Issue date Dec 28, 1948
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H01 - BASIC ELECTRIC ELEMENTS