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3223812
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Patent number 3,223,812
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Issue date Dec 14, 1965
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H01 - BASIC ELECTRIC ELEMENTS
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3099757
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Patent number 3,099,757
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H01 - BASIC ELECTRIC ELEMENTS
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3092740
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G05 - CONTROLLING REGULATING
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2955167
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Patent number 2,955,167
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Issue date Oct 4, 1960
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H01 - BASIC ELECTRIC ELEMENTS
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2934607
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H01 - BASIC ELECTRIC ELEMENTS
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2870262
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H01 - BASIC ELECTRIC ELEMENTS
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2823273
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H01 - BASIC ELECTRIC ELEMENTS
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2768826
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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2731515
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H01 - BASIC ELECTRIC ELEMENTS
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2695336
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Patent number 2,695,336
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H01 - BASIC ELECTRIC ELEMENTS
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2685078
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Patent number 2,685,078
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Issue date Jul 27, 1954
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H01 - BASIC ELECTRIC ELEMENTS
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2684408
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Patent number 2,684,408
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H01 - BASIC ELECTRIC ELEMENTS
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2680791
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Patent number 2,680,791
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H01 - BASIC ELECTRIC ELEMENTS
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2677017
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Patent number 2,677,017
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H01 - BASIC ELECTRIC ELEMENTS
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2673247
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Patent number 2,673,247
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H01 - BASIC ELECTRIC ELEMENTS
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2658111
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Patent number 2,658,111
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H01 - BASIC ELECTRIC ELEMENTS
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2652456
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Patent number 2,652,456
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H01 - BASIC ELECTRIC ELEMENTS
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2628281
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Patent number 2,628,281
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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2624807
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Patent number 2,624,807
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H01 - BASIC ELECTRIC ELEMENTS
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2623126
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Patent number 2,623,126
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H01 - BASIC ELECTRIC ELEMENTS
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2607855
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Patent number 2,607,855
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H01 - BASIC ELECTRIC ELEMENTS
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2607856
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Patent number 2,607,856
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Issue date Aug 19, 1952
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H01 - BASIC ELECTRIC ELEMENTS
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2604541
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Patent number 2,604,541
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H01 - BASIC ELECTRIC ELEMENTS
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2578095
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Patent number 2,578,095
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H01 - BASIC ELECTRIC ELEMENTS
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2567650
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Patent number 2,567,650
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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2565480
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Patent number 2,565,480
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H01 - BASIC ELECTRIC ELEMENTS
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2506730
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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2495701
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H01 - BASIC ELECTRIC ELEMENTS
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2477259
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H01 - BASIC ELECTRIC ELEMENTS
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2433256
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H01 - BASIC ELECTRIC ELEMENTS