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Roll brake
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Patent number 5,836,426
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Issue date Nov 17, 1998
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Chadwick Engineering Limited
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Dennis P. Chadwick
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Method and apparatus for wrapping coils
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Patent number 5,782,058
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Issue date Jul 21, 1998
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Chadwick Engineering Limited
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Dennis P. Chadwick
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Wall-breaching apparatus
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Patent number 4,856,430
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Issue date Aug 15, 1989
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Her Majesty the Queen in right of Canada, as represented by the Minister of N...
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Allan W. M. Gibb
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F42 - AMMUNITION BLASTING
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