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Coupling for a mill roll
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Patent number 4,305,678
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Issue date Dec 15, 1981
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Hoogovens Ijmuiden, B.V.
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Hendrik Majoor
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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System for control of a coking plant
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Patent number 4,234,390
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Issue date Nov 18, 1980
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Hoogovens Ijmuiden, B.V.
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Jacobus H. Van Egmond
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Expandable coiler mandrel
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Patent number 4,213,577
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Issue date Jul 22, 1980
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Hoogovens Ijmuiden, B.V.
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Hendrik Majoor
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Railway level crossing
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Patent number 4,203,547
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Issue date May 20, 1980
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Hoogovens Ijmuiden, B.V.
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Pieter A. van der Harst
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Operation of a two-phase reactor
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Patent number 4,193,867
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Issue date Mar 18, 1980
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Hoogovens Ijmuiden, B.V.
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Sheldon Evans
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Locomotive engine housing arrangement
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Patent number 4,186,665
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Issue date Feb 5, 1980
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Hoogovens Ijmuiden, B.V.
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Hendrikus de Jong
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Apparatus for cleaning a coke oven door
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Patent number 4,165,261
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Issue date Aug 21, 1979
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Hoogovens Ijmuiden, B.V.
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Rauke Henstra
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Liquid passage through a machine-part
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Patent number 4,103,978
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Issue date Aug 1, 1978
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Hoogovens Ijmuiden, B.V.
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Simon Hoornstra
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...