Woodworking machines 1970-01-01
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Air bearing 1970-01-01
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Anaesthetic machine 1970-01-01
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Autopen 1970-01-01
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Bagel machine 1970-01-01
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Bicycle tree 1970-01-01
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Bin tipper 1970-01-01
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Block and tackle 1970-01-01
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Brewing equipment 1970-01-01
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Delivery Bar Code Sorter 1970-01-01
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Demaco extruder 1970-01-01
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Digifold 1970-01-01
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Draw twister 1970-01-01
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Dual quaternion 1970-01-01
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Duplicating machines 1970-01-01
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Elastic and inelastic collisions apparatus 1970-01-01
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Electric machine 1970-01-01
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Euphonia (device) 1970-01-01
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Four-slide 1970-01-01
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Gas meter prover 1970-01-01
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