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US7708038B1
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Substantially helical, stepped blade row cutterhead having removable blade units
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AU7734296A
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Removable cutting blades for a helical cutterhead
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Cutterhead for an industrial woodworking machine
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|
US4232580A
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Circular saw blade
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CA1028487A
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Wood planer cutterhead design for reduced noise level
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Wood planer cutterhead design for reduced noise level
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Top structure for blast furnaces
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Blast furnace
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Hair-comb
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Well-drilling device.
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Casing mechanism.
|
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CA430367A
|
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Blast furnace
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