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3800256
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Patent number 3,800,256
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Issue date Mar 26, 1974
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G11 - INFORMATION STORAGE
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3768053
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Patent number 3,768,053
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H01 - BASIC ELECTRIC ELEMENTS
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3720847
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Patent number 3,720,847
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H01 - BASIC ELECTRIC ELEMENTS
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3715703
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Patent number 3,715,703
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H03 - BASIC ELECTRONIC CIRCUITRY
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3713058
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Patent number 3,713,058
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Issue date Jan 23, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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3691491
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Patent number 3,691,491
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H01 - BASIC ELECTRIC ELEMENTS
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3686458
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Patent number 3,686,458
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H01 - BASIC ELECTRIC ELEMENTS
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3593413
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Patent number 3,593,413
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Issue date Jul 20, 1971
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H01 - BASIC ELECTRIC ELEMENTS
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3506940
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Patent number 3,506,940
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Issue date Apr 14, 1970
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G11 - INFORMATION STORAGE
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3493475
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Patent number 3,493,475
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G11 - INFORMATION STORAGE
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3459543
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Patent number 3,459,543
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3440376
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Patent number 3,440,376
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H01 - BASIC ELECTRIC ELEMENTS
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3359394
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Patent number 3,359,394
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H03 - BASIC ELECTRONIC CIRCUITRY
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3349209
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H01 - BASIC ELECTRIC ELEMENTS
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3339165
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G11 - INFORMATION STORAGE
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3288637
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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3255335
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G11 - INFORMATION STORAGE
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3090023
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G11 - INFORMATION STORAGE
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3058851
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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3058852
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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3055775
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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2989716
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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2946030
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G11 - INFORMATION STORAGE