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Method of casing-in books
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Patent number 4,565,477
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Issue date Jan 21, 1986
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Permatek, Inc.
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Herbert R. Axelrod
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Flyleaf heat sealer
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Patent number 4,526,642
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Issue date Jul 2, 1985
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Permatek, Inc.
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Robert A. Caughey
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Book binding machine
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Patent number 4,505,629
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Issue date Mar 19, 1985
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Permatek, Inc.
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Michael A. Lynch
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Method for binding books
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Patent number 4,420,282
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Issue date Dec 13, 1983
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Permatek, Inc.
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Herbert R. Axelrod
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER