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3837923
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Patent number 3,837,923
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H01 - BASIC ELECTRIC ELEMENTS
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3798067
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Patent number 3,798,067
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H01 - BASIC ELECTRIC ELEMENTS
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3620845
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Patent number 3,620,845
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H01 - BASIC ELECTRIC ELEMENTS
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2902755
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2816946
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H01 - BASIC ELECTRIC ELEMENTS
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2810007
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Patent number 2,810,007
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Issue date Oct 15, 1957
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2647155
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Patent number 2,647,155
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H01 - BASIC ELECTRIC ELEMENTS
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2613234
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Patent number 2,613,234
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H01 - BASIC ELECTRIC ELEMENTS
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2612539
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Patent number 2,612,539
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H01 - BASIC ELECTRIC ELEMENTS
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2595814
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Patent number 2,595,814
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H01 - BASIC ELECTRIC ELEMENTS
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2553068
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Patent number 2,553,068
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H01 - BASIC ELECTRIC ELEMENTS
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2484593
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H01 - BASIC ELECTRIC ELEMENTS
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2189666
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Patent number 2,189,666
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H01 - BASIC ELECTRIC ELEMENTS
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1760178
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1528076
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H01 - BASIC ELECTRIC ELEMENTS
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1379698
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H01 - BASIC ELECTRIC ELEMENTS
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494827
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H01 - BASIC ELECTRIC ELEMENTS
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485089
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439737
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H01 - BASIC ELECTRIC ELEMENTS
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310004
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H01 - BASIC ELECTRIC ELEMENTS