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Tank lid
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Patent number 5,071,021
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Issue date Dec 10, 1991
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S. Smith & Son Pty. Ltd.
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James S. McDougall
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Valve control means
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Patent number 4,860,779
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Issue date Aug 29, 1989
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S. Smith & Son Pty. Ltd.
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Darryl R. Whitford
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Barrel shaver
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Patent number 4,827,994
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Issue date May 9, 1989
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S Smith & Son Pty Ltd.
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Darryl R. Whitford
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Gas injection means
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Patent number 4,790,359
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Issue date Dec 13, 1988
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S. Smith & Son Pty. Ltd.
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Darryl R. Whitford
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Tank lid
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Patent number 4,736,864
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Issue date Apr 12, 1988
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S. Smith & Son Pty. Ltd.
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Darryl R. Whitford
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL