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Method of making a punch assembly
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Patent number 3,999,279
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Issue date Dec 28, 1976
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Riverside Press, Inc.
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Cothburn M. O'Neal
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Voting machine
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Patent number 3,977,357
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Issue date Aug 31, 1976
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Riverside Press, Inc.
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Cothburn M. O'Neal
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G07 - CHECKING-DEVICES
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Voting machine
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Patent number 3,971,914
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Issue date Jul 27, 1976
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Riverside Press, Inc.
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Cothburn M. O'Neal
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G07 - CHECKING-DEVICES
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Voting machine
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Patent number 3,935,426
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Issue date Jan 27, 1976
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The Riverside Press, Inc.
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Cothburn M. O'Neal
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G07 - CHECKING-DEVICES