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Facsimile receiver
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Patent number 4,112,468
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Issue date Sep 5, 1978
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Exxon Research & Engineering Co.
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Richard L. Nelson
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Facsimile copy medium
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Patent number 4,054,884
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Issue date Oct 18, 1977
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Exxon Research and Engineering Company
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Richard L. Nelson
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G01 - MEASURING TESTING
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Facsimile copy medium magazine
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Patent number 3,975,590
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Issue date Aug 17, 1976
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Exxon Research and Engineering Company
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Richard L. Nelson
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Facsimile apparatus
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Patent number 3,956,587
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Issue date May 11, 1976
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Exxon Research and Engineering Company
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Richard L. Nelson
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H04 - ELECTRIC COMMUNICATION TECHNIQUE