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Doctor blade system
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Patent number 11,820,123
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Issue date Nov 21, 2023
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Bobst Bielefeld GmbH
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Volker Caspari
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Doctor blade purge system
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Patent number 7,309,402
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Issue date Dec 18, 2007
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Kadant Web Systems, Inc.
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Robert A. Reid
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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3292201
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Patent number 3,292,201
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Issue date Dec 20, 1966
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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1878564
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Patent number 1,878,564
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Issue date Sep 20, 1932
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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1833767
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Patent number 1,833,767
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Issue date Nov 24, 1931
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS