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Process of making heat exchangers
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Patent number 4,637,111
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Issue date Jan 20, 1987
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Peerless of America, Inc.
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Stephen F. Pasternak
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Heat exchangers and method of making same
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Patent number 4,554,970
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Issue date Nov 26, 1985
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Peerless of America, Inc.
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Stephen F. Pasternak
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Tube supports
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Patent number 4,369,833
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Issue date Jan 25, 1983
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Peerless of America, Inc.
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Stephen F. Pasternak
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F28 - HEAT EXCHANGE IN GENERAL
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Method of making a heat exchanger
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Patent number 3,947,941
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Issue date Apr 6, 1976
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Peerless of America, Incorporated
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Joseph M. O'Connor
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...