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Magnetic switch
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Patent number 4,489,297
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Issue date Dec 18, 1984
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Arthur W. Haydon
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H01 - BASIC ELECTRIC ELEMENTS
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Electric rotating machine
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Patent number 4,274,026
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Issue date Jun 16, 1981
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Tri-Tech, Inc.
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Arthur W. Haydon
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Synchronous electric motor
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Patent number 4,241,270
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Issue date Dec 23, 1980
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Tri-Tech, Inc.
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Arthur W. Haydon
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Electric rotating machine
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Patent number 4,087,709
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Issue date May 2, 1978
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Tri-Tech, Inc.
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Arthur W. Haydon
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Electric rotating machine
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Patent number 4,004,168
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Issue date Jan 18, 1977
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Tri-Tech, Inc.
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Arthur W. Haydon
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER