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Quick cone
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Patent number 6,371,526
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Issue date Apr 16, 2002
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Kvaerner Pulping AB
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Rolf Ekholm
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Variable size pipe connector
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Patent number 5,143,408
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Issue date Sep 1, 1992
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Eric B. Holtsmark
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Adapter
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Patent number 3,986,737
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Issue date Oct 19, 1976
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Allstar Verbrauchsguter GmbH & Co. KG.
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Kurt Krusche
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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3866950
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Patent number 3,866,950
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Issue date Feb 18, 1975
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F24 - HEATING RANGES VENTILATING
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1722676
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Patent number 1,722,676
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Issue date Jul 30, 1929
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...