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3829964
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Patent number 3,829,964
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Issue date Aug 20, 1974
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H01 - BASIC ELECTRIC ELEMENTS
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3778895
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Patent number 3,778,895
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Issue date Dec 18, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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3618205
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Patent number 3,618,205
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Issue date Nov 9, 1971
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H01 - BASIC ELECTRIC ELEMENTS
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3553831
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Patent number 3,553,831
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Issue date Jan 12, 1971
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3507038
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Patent number 3,507,038
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Issue date Apr 21, 1970
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H01 - BASIC ELECTRIC ELEMENTS
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3422529
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Patent number 3,422,529
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Issue date Jan 21, 1969
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H01 - BASIC ELECTRIC ELEMENTS
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3169859
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Patent number 3,169,859
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Issue date Feb 16, 1965
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H01 - BASIC ELECTRIC ELEMENTS
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3144704
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Patent number 3,144,704
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Issue date Aug 18, 1964
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H01 - BASIC ELECTRIC ELEMENTS